Sorry, I've never had report an error, so I don't know what to look for. Everything had "Severe" Next to it, so I thought it might be important
[12:16:14] [sEVERE] ------------------------------------------
[12:16:14] [sEVERE] Launcher is starting....
[12:16:14] [sEVERE] Launcher Build: '1.0.1.3'
[12:16:14] [sEVERE] Allocated 910.25 Mb of RAM
[12:16:14] [sEVERE] Java VM: '1.7.0_05-b05'
[12:16:14] [sEVERE] OS Version: '6.1'
[12:16:14] [sEVERE] Is 64-bit: 'true'
[12:16:17] [sEVERE] [info] Downloading 'mirrors.yml' from 'http://mirror.technicpack.net/Technic/mirrors.yml'.
[12:16:17] [sEVERE] Yaml File has error's badly formed: 'http://mirror.technicpack.net/Technic/mirrors.yml'/n
[12:16:17] [sEVERE] mapping values are not allowed here
in "<reader>", line 9, column 15:
background: url("data:image/gif;base64,R0l ...
^
[12:16:17] [sEVERE] at org.yaml.snakeyaml.scanner.ScannerImpl.fetchValue(ScannerImpl.java:733)
[12:16:17] [sEVERE] at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:305)
[12:16:17] [sEVERE] at org.yaml.snakeyaml.scanner.ScannerImpl.peekToken(ScannerImpl.java:202)
[12:16:17] [sEVERE] at org.yaml.snakeyaml.parser.ParserImpl$ParseDocumentEnd.produce(ParserImpl.java:265)
[12:16:17] [sEVERE] at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:161)
[12:16:17] [sEVERE] at org.yaml.snakeyaml.parser.ParserImpl.getEvent(ParserImpl.java:171)
[12:16:17] [sEVERE] at org.yaml.snakeyaml.composer.Composer.composeDocument(Composer.java:125)
[12:16:17] [sEVERE] at org.yaml.snakeyaml.composer.Composer.getSingleNode(Composer.java:106)
[12:16:17] [sEVERE] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:121)
[12:16:17] [sEVERE] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:480)
[12:16:17] [sEVERE] at org.yaml.snakeyaml.Yaml.load(Yaml.java:411)
[12:16:17] [sEVERE] at org.spoutcraft.launcher.YmlUtils.downloadYmlFile(YmlUtils.java:76)
[12:16:17] [sEVERE] at org.spoutcraft.launcher.YmlUtils.downloadMirrorsYmlFile(YmlUtils.java:20)
[12:16:17] [sEVERE] at org.spoutcraft.launcher.MirrorUtils.updateMirrorsYMLCache(MirrorUtils.java:130)
[12:16:17] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm.loadLauncherData(LoginForm.java:359)
[12:16:17] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm.<init>(LoginForm.java:133)
[12:16:17] [sEVERE] at org.spoutcraft.launcher.Main.main(Main.java:194)
[12:16:18] [sEVERE] [info] Downloading 'mirrors.yml' from 'https://raw.github.com/TechnicPack/Technic/master/mirrors.yml'.
[12:16:18] [sEVERE] Starting download of 'http://mirror.technicpack.net/Technic/CHECKSUM.md5', with 3 trie(s) remaining
[12:16:18] [sEVERE] Copying: \temp\file730198607571898444.tmp to: \launcher\CHECKSUM.md5
[12:16:18] [sEVERE] File Downloaded: \launcher\CHECKSUM.md5
[12:16:18] [sEVERE] Exception in thread "main"
[12:16:18] [sEVERE] java.util.NoSuchElementException: No line found
[12:16:18] [sEVERE] at java.util.Scanner.nextLine(Unknown Source)
[12:16:18] [sEVERE] at org.spoutcraft.launcher.MD5Utils.parseChecksumFile(MD5Utils.java:101)
[12:16:18] [sEVERE] at org.spoutcraft.launcher.MD5Utils.updateMD5Cache(MD5Utils.java:82)
[12:16:18] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm.loadLauncherData(LoginForm.java:360)
[12:16:18] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm.<init>(LoginForm.java:133)
[12:16:18] [sEVERE] at org.spoutcraft.launcher.Main.main(Main.java:194)
[12:17:34] [sEVERE] ------------------------------------------
[12:17:34] [sEVERE] Launcher is starting....
[12:17:34] [sEVERE] Launcher Build: '1.0.1.3'
[12:17:34] [sEVERE] Allocated 910.25 Mb of RAM
[12:17:34] [sEVERE] Java VM: '1.7.0_05-b05'
[12:17:34] [sEVERE] OS Version: '6.1'
[12:17:34] [sEVERE] Is 64-bit: 'true'
[12:17:40] [sEVERE] [info] Downloading 'mirrors.yml' from 'https://raw.github.com/TechnicPack/Technic/master/mirrors.yml'.
[12:17:40] [sEVERE] Starting download of 'http://mirror.technicpack.net/Technic/CHECKSUM.md5', with 3 trie(s) remaining
[12:17:40] [sEVERE] Copying: \temp\file7418593090294286907.tmp to: \launcher\CHECKSUM.md5
[12:17:40] [sEVERE] File Downloaded: \launcher\CHECKSUM.md5
[12:17:40] [sEVERE] Exception in thread "main"
[12:17:40] [sEVERE] java.util.NoSuchElementException: No line found
[12:17:40] [sEVERE] at java.util.Scanner.nextLine(Unknown Source)
[12:17:40] [sEVERE] at org.spoutcraft.launcher.MD5Utils.parseChecksumFile(MD5Utils.java:101)
[12:17:40] [sEVERE] at org.spoutcraft.launcher.MD5Utils.updateMD5Cache(MD5Utils.java:82)
[12:17:40] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm.loadLauncherData(LoginForm.java:360)
[12:17:40] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm.<init>(LoginForm.java:133)
[12:17:40] [sEVERE] at org.spoutcraft.launcher.Main.main(Main.java:194)
[12:36:01] [sEVERE] ------------------------------------------
[12:36:01] [sEVERE] Launcher is starting....
[12:36:01] [sEVERE] Launcher Build: '1.0.1.3'
[12:36:01] [sEVERE] Allocated 910.25 Mb of RAM
[12:36:01] [sEVERE] Java VM: '1.7.0_05-b05'
[12:36:01] [sEVERE] OS Version: '6.1'
[12:36:01] [sEVERE] Is 64-bit: 'true'
[12:36:02] [sEVERE] [info] Downloading 'mirrors.yml' from 'http://mirror.technicpack.net/Technic/mirrors.yml'.
[12:36:03] [sEVERE] Yaml File has error's badly formed: 'http://mirror.technicpack.net/Technic/mirrors.yml'/n
[12:36:03] [sEVERE] mapping values are not allowed here
in "<reader>", line 9, column 15:
background: url("data:image/gif;base64,R0l ...
^
[12:36:03] [sEVERE] at org.yaml.snakeyaml.scanner.ScannerImpl.fetchValue(ScannerImpl.java:733)
[12:36:03] [sEVERE] at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:305)
[12:36:03] [sEVERE] at org.yaml.snakeyaml.scanner.ScannerImpl.peekToken(ScannerImpl.java:202)
[12:36:03] [sEVERE] at org.yaml.snakeyaml.parser.ParserImpl$ParseDocumentEnd.produce(ParserImpl.java:265)
[12:36:03] [sEVERE] at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:161)
[12:36:03] [sEVERE] at org.yaml.snakeyaml.parser.ParserImpl.getEvent(ParserImpl.java:171)
[12:36:03] [sEVERE] at org.yaml.snakeyaml.composer.Composer.composeDocument(Composer.java:125)
[12:36:03] [sEVERE] at org.yaml.snakeyaml.composer.Composer.getSingleNode(Composer.java:106)
[12:36:03] [sEVERE] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:121)
[12:36:03] [sEVERE] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:480)
[12:36:03] [sEVERE] at org.yaml.snakeyaml.Yaml.load(Yaml.java:411)
[12:36:03] [sEVERE] at org.spoutcraft.launcher.YmlUtils.downloadYmlFile(YmlUtils.java:76)
[12:36:03] [sEVERE] at org.spoutcraft.launcher.YmlUtils.downloadMirrorsYmlFile(YmlUtils.java:20)
[12:36:03] [sEVERE] at org.spoutcraft.launcher.MirrorUtils.updateMirrorsYMLCache(MirrorUtils.java:130)
[12:36:03] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm.loadLauncherData(LoginForm.java:359)
[12:36:03] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm.<init>(LoginForm.java:133)
[12:36:03] [sEVERE] at org.spoutcraft.launcher.Main.main(Main.java:194)
[12:36:05] [sEVERE] [info] Downloading 'mirrors.yml' from 'https://raw.github.com/TechnicPack/Technic/master/mirrors.yml'.
[12:36:10] [sEVERE] [info] Downloading 'modpacks.yml' from 'http://mirror.technicpack.net/Technic/modpacks.yml'.
[12:36:11] [sEVERE] Yaml File has error's badly formed: 'http://mirror.technicpack.net/Technic/modpacks.yml'/n
[12:36:11] [sEVERE] mapping values are not allowed here
in "<reader>", line 9, column 15:
background: url("data:image/gif;base64,R0l ...
^
[12:36:11] [sEVERE] at org.yaml.snakeyaml.scanner.ScannerImpl.fetchValue(ScannerImpl.java:733)
[12:36:11] [sEVERE] at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:305)
[12:36:11] [sEVERE] at org.yaml.snakeyaml.scanner.ScannerImpl.peekToken(ScannerImpl.java:202)
[12:36:11] [sEVERE] at org.yaml.snakeyaml.parser.ParserImpl$ParseDocumentEnd.produce(ParserImpl.java:265)
[12:36:11] [sEVERE] at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:161)
[12:36:11] [sEVERE] at org.yaml.snakeyaml.parser.ParserImpl.getEvent(ParserImpl.java:171)
[12:36:11] [sEVERE] at org.yaml.snakeyaml.composer.Composer.composeDocument(Composer.java:125)
[12:36:11] [sEVERE] at org.yaml.snakeyaml.composer.Composer.getSingleNode(Composer.java:106)
[12:36:11] [sEVERE] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:121)
[12:36:11] [sEVERE] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:480)
[12:36:11] [sEVERE] at org.yaml.snakeyaml.Yaml.load(Yaml.java:411)
[12:36:11] [sEVERE] at org.spoutcraft.launcher.YmlUtils.downloadYmlFile(YmlUtils.java:76)
[12:36:11] [sEVERE] at org.spoutcraft.launcher.YmlUtils.downloadRelativeYmlFile(YmlUtils.java:24)
[12:36:11] [sEVERE] at org.spoutcraft.launcher.modpacks.ModPackListYML.updateModPacksYMLCache(ModPackListYML.java:82)
[12:36:11] [sEVERE] at org.spoutcraft.launcher.modpacks.ModPackListYML.getConfig(ModPackListYML.java:72)
[12:36:11] [sEVERE] at org.spoutcraft.launcher.modpacks.ModPackListYML.getModPacks(ModPackListYML.java:108)
[12:36:11] [sEVERE] at org.spoutcraft.launcher.modpacks.ModPackListYML.<clinit>(ModPackListYML.java:60)
[12:36:11] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm.loadLauncherData(LoginForm.java:361)
[12:36:11] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm.<init>(LoginForm.java:133)
[12:36:11] [sEVERE] at org.spoutcraft.launcher.Main.main(Main.java:194)
[12:36:11] [sEVERE] Exception in thread "main"
[12:36:11] [sEVERE] java.lang.NullPointerException
[12:36:11] [sEVERE] at org.spoutcraft.launcher.modpacks.ModPackListYML.getAllModPackResources(ModPackListYML.java:186)
[12:36:11] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm.loadLauncherData(LoginForm.java:363)
[12:36:11] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm.<init>(LoginForm.java:133)
[12:36:11] [sEVERE] at org.spoutcraft.launcher.Main.main(Main.java:194)
[12:39:32] [sEVERE] ------------------------------------------
[12:39:32] [sEVERE] Launcher is starting....
[12:39:32] [sEVERE] Launcher Build: '1.0.1.3'
[12:39:32] [sEVERE] Allocated 910.25 Mb of RAM
[12:39:32] [sEVERE] Java VM: '1.7.0_05-b05'
[12:39:32] [sEVERE] OS Version: '6.1'
[12:39:32] [sEVERE] Is 64-bit: 'true'
[12:39:35] [sEVERE] [info] Downloading 'mirrors.yml' from 'http://mirror.technicpack.net/Technic/mirrors.yml'.
[12:39:38] [sEVERE] Yaml File has error's badly formed: 'http://mirror.technicpack.net/Technic/mirrors.yml'/n
[12:39:38] [sEVERE] mapping values are not allowed here
in "<reader>", line 9, column 15:
background: url("data:image/gif;base64,R0l ...
^
[12:39:38] [sEVERE] at org.yaml.snakeyaml.scanner.ScannerImpl.fetchValue(ScannerImpl.java:733)
[12:39:38] [sEVERE] at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:305)
[12:39:38] [sEVERE] at org.yaml.snakeyaml.scanner.ScannerImpl.peekToken(ScannerImpl.java:202)
[12:39:38] [sEVERE] at org.yaml.snakeyaml.parser.ParserImpl$ParseDocumentEnd.produce(ParserImpl.java:265)
[12:39:38] [sEVERE] at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:161)
[12:39:38] [sEVERE] at org.yaml.snakeyaml.parser.ParserImpl.getEvent(ParserImpl.java:171)
[12:39:38] [sEVERE] at org.yaml.snakeyaml.composer.Composer.composeDocument(Composer.java:125)
[12:39:38] [sEVERE] at org.yaml.snakeyaml.composer.Composer.getSingleNode(Composer.java:106)
[12:39:38] [sEVERE] at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:121)
[12:39:38] [sEVERE] at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:480)
[12:39:38] [sEVERE] at org.yaml.snakeyaml.Yaml.load(Yaml.java:411)
[12:39:38] [sEVERE] at org.spoutcraft.launcher.YmlUtils.downloadYmlFile(YmlUtils.java:76)
[12:39:38] [sEVERE] at org.spoutcraft.launcher.YmlUtils.downloadMirrorsYmlFile(YmlUtils.java:20)
[12:39:38] [sEVERE] at org.spoutcraft.launcher.MirrorUtils.updateMirrorsYMLCache(MirrorUtils.java:130)
[12:39:38] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm.loadLauncherData(LoginForm.java:359)
[12:39:38] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm.<init>(LoginForm.java:133)
[12:39:38] [sEVERE] at org.spoutcraft.launcher.Main.main(Main.java:194)
[12:39:39] [sEVERE] [info] Downloading 'mirrors.yml' from 'https://raw.github.com/TechnicPack/Technic/master/mirrors.yml'.
[12:39:39] [sEVERE] Starting download of 'http://mirror.technicpack.net/Technic/CHECKSUM.md5', with 3 trie(s) remaining
[12:39:39] [sEVERE] Copying: \temp\file8183123258156446688.tmp to: \launcher\CHECKSUM.md5
[12:39:39] [sEVERE] File Downloaded: \launcher\CHECKSUM.md5
[12:39:39] [sEVERE] Exception in thread "main"
[12:39:39] [sEVERE] java.util.NoSuchElementException: No line found
[12:39:39] [sEVERE] at java.util.Scanner.nextLine(Unknown Source)
[12:39:39] [sEVERE] at org.spoutcraft.launcher.MD5Utils.parseChecksumFile(MD5Utils.java:101)
[12:39:39] [sEVERE] at org.spoutcraft.launcher.MD5Utils.updateMD5Cache(MD5Utils.java:82)
[12:39:39] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm.loadLauncherData(LoginForm.java:360)
[12:39:39] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm.<init>(LoginForm.java:133)
[12:39:39] [sEVERE] at org.spoutcraft.launcher.Main.main(Main.java:194)