I'm thinking the issue is balkonweaponsmod. Log below. When trying to access http://206.217.207.1/Technic/mods/balkonsweaponmod/balkonsweaponmod-v1.10-1.4.6.zip, no file can be found (constructing the URL this way worked for buildcraft and other mods, though it's possible the balkonweaponsmod zip is stored elsewhere.
Log:
[22:58:09] [sEVERE] ------------------------------------------
[22:58:09] [sEVERE] Launcher is starting....
[22:58:09] [sEVERE] Launcher Build: '1.1.1.0'
[22:58:09] [sEVERE] Allocated 910.25 Mb of RAM
[22:58:09] [sEVERE] Java VM: '1.7.0_10-b18'
[22:58:09] [sEVERE] OS Version: '6.1'
[22:58:09] [sEVERE] Is 64-bit: 'true'
[22:58:09] [sEVERE] [info] Downloading 'mirrors.yml' from 'http://mirror.technicpack.net/Technic/mirrors.yml'.
[22:58:09] [sEVERE] Downloading 'http://206.217.207.1/Technic/CHECKSUM.md5'
[22:58:09] [sEVERE] Downloaded '\launcher\CHECKSUM.md5'
[22:58:09] [sEVERE] [info] Downloading 'modpacks.yml' from 'http://mirror.technicpack.net/Technic/modpacks.yml'.
[22:58:11] [sEVERE] Downloading 'http://206.217.207.1/Technic/hackslashmine/resources/icon.png'
[22:58:11] [sEVERE] Downloading 'http://mirror.technicpack.net/Technic/tekkitlite/resources/logo.png'
[22:58:11] [sEVERE] Downloading 'http://206.217.207.1/Technic/custom2/resources/favicon.png'
[22:58:11] [sEVERE] Downloading 'http://mirror.technicpack.net/Technic/technicssp/resources/logo.png'
[22:58:11] [sEVERE] Downloading 'http://206.217.207.1/Technic/custom3/resources/logo.png'
[22:58:11] [sEVERE] Downloading 'http://206.217.207.1/Technic/tekkitlite/resources/favicon.png'
[22:58:11] [sEVERE] Downloading 'http://mirror.technicpack.net/Technic/technicssp/resources/icon.png'
[22:58:11] [sEVERE] Downloading 'http://mirror.technicpack.net/Technic/tekkitlite/resources/icon.png'
[22:58:11] [sEVERE] Downloading 'http://206.217.207.1/Technic/hackslashmine/resources/logo.png'
[22:58:11] [sEVERE] Downloading 'http://mirror.technicpack.net/Technic/yogbox/resources/favicon.png'
[22:58:11] [sEVERE] Downloading 'http://mirror.technicpack.net/Technic/voltz/resources/favicon.png'
[22:58:11] [sEVERE] Downloading 'http://206.217.207.1/Technic/custom2/resources/logo.png'
[22:58:11] [sEVERE] Downloading 'http://206.217.207.1/Technic/custom1/resources/favicon.png'
[22:58:11] [sEVERE] Downloading 'http://mirror.technicpack.net/Technic/custom1/resources/logo.png'
[22:58:11] [sEVERE] Downloading 'http://206.217.207.1/Technic/tekkit/resources/favicon.png'
[22:58:11] [sEVERE] Downloading 'http://206.217.207.1/Technic/hackslashmine/resources/favicon.png'
[22:58:11] [sEVERE] Downloading 'http://206.217.207.1/Technic/vanilla/resources/favicon.png'
[22:58:11] [sEVERE] Downloading 'http://mirror.technicpack.net/Technic/tekkit/resources/icon.png'
[22:58:11] [sEVERE] Downloading 'http://mirror.technicpack.net/Technic/voltz/resources/logo.png'
[22:58:11] [sEVERE] Downloading 'http://206.217.207.1/Technic/vanilla/resources/logo.png'
[22:58:11] [sEVERE] Downloading 'http://206.217.207.1/Technic/vanilla/resources/icon.png'
[22:58:11] [sEVERE] Downloading 'http://mirror.technicpack.net/Technic/voltz/resources/icon.png'
[22:58:11] [sEVERE] Downloading 'http://206.217.207.1/Technic/custom1/resources/icon.png'
[22:58:11] [sEVERE] Downloading 'http://mirror.technicpack.net/Technic/tekkit/resources/logo.png'
[22:58:11] [sEVERE] Downloading 'http://mirror.technicpack.net/Technic/custom3/resources/icon.png'
[22:58:11] [sEVERE] Downloading 'http://mirror.technicpack.net/Technic/custom3/resources/favicon.png'
[22:58:11] [sEVERE] Downloading 'http://206.217.207.1/Technic/yogbox/resources/logo.png'
[22:58:11] [sEVERE] Downloading 'http://206.217.207.1/Technic/yogbox/resources/icon.png'
[22:58:11] [sEVERE] Downloading 'http://206.217.207.1/Technic/technicssp/resources/favicon.png'
[22:58:11] [sEVERE] Downloading 'http://mirror.technicpack.net/Technic/custom2/resources/icon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\hackslashmine\resources\icon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\custom2\resources\favicon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\tekkitlite\resources\favicon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\tekkitlite\resources\icon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\custom1\resources\favicon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\tekkit\resources\favicon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\technicssp\resources\icon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\custom3\resources\logo.png'
[22:58:11] [sEVERE] Downloaded '\launcher\custom1\resources\logo.png'
[22:58:11] [sEVERE] Downloaded '\launcher\hackslashmine\resources\logo.png'
[22:58:11] [sEVERE] Downloaded '\launcher\voltz\resources\favicon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\tekkit\resources\icon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\custom2\resources\logo.png'
[22:58:11] [sEVERE] Downloaded '\launcher\yogbox\resources\favicon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\hackslashmine\resources\favicon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\vanilla\resources\favicon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\voltz\resources\icon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\custom1\resources\icon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\yogbox\resources\icon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\custom3\resources\icon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\custom2\resources\icon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\vanilla\resources\icon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\technicssp\resources\favicon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\custom3\resources\favicon.png'
[22:58:11] [sEVERE] Downloaded '\launcher\tekkitlite\resources\logo.png'
[22:58:11] [sEVERE] Downloaded '\launcher\technicssp\resources\logo.png'
[22:58:11] [sEVERE] Downloaded '\launcher\tekkit\resources\logo.png'
[22:58:11] [sEVERE] Downloaded '\launcher\voltz\resources\logo.png'
[22:58:11] [sEVERE] Downloaded '\launcher\vanilla\resources\logo.png'
[22:58:11] [sEVERE] Downloaded '\launcher\yogbox\resources\logo.png'
[22:58:11] [sEVERE] [info] Downloading 'libraries.yml' from 'http://206.217.207.1/Technic/libraries.yml'.
[22:58:11] [sEVERE] [info] Downloading 'modlibrary.yml' from 'http://mirror.technicpack.net/Technic/modlibrary.yml'.
[22:58:24] [sEVERE] [info] Downloading 'modpack.yml' from 'http://206.217.207.1/Technic/tekkitlite/modpack.yml'.
[22:58:24] [sEVERE] [info] Downloading 'minecraft.yml' from 'http://206.217.207.1/Technic/minecraft.yml'.
[23:00:48] [sEVERE] Rebooting with [java, -Xmx4096m, -jar, "C:/Users/MH6/AppData/Roaming/technic-launcher.jar"]
[23:00:48] [sEVERE] ------------------------------------------
[23:00:48] [sEVERE] Launcher is starting....
[23:00:48] [sEVERE] Launcher Build: '1.1.1.0'
[23:00:48] [sEVERE] Allocated 3640.9375 Mb of RAM
[23:00:48] [sEVERE] Java VM: '1.7.0_10-b18'
[23:00:48] [sEVERE] OS Version: '6.1'
[23:00:48] [sEVERE] Is 64-bit: 'true'
[23:00:49] [sEVERE] [info] Downloading 'mirrors.yml' from 'http://mirror.technicpack.net/Technic/mirrors.yml'.
[23:00:49] [sEVERE] Downloading 'http://mirror.technicpack.net/Technic/CHECKSUM.md5'
[23:00:49] [sEVERE] Downloaded '\launcher\CHECKSUM.md5'
[23:00:49] [sEVERE] [MD5 Mismatch] File '\launcher\tekkitlite\modpack.yml' has md5 of '97d632f1771628b83ffd17a54cee2725' instead of '7f9b60db357888d0b0fc5eaf87ec367f'
[23:00:49] [sEVERE] [info] Downloading 'modpack.yml' from 'http://mirror.technicpack.net/Technic/tekkitlite/modpack.yml'.
[23:00:49] [sEVERE] [info] Downloading 'minecraft.yml' from 'http://mirror.technicpack.net/Technic/minecraft.yml'.
[23:01:24] [sEVERE] \tekkitlite\bin does not exist! Updating..
[23:01:24] [sEVERE] 'basemods-tekkitlite-v0.5.2.zip' has MD5 mismatch! Updating..
[23:01:24] [sEVERE] Starting download of minecraft, with 3 trie(s) remaining
[23:01:27] [sEVERE] Downloaded 'minecraft.jar' matches MD5 of version '1.4.7'.
[23:01:27] [sEVERE] Downloading 'http://s3.amazonaws.com/MinecraftDownload/jinput.jar'
[23:01:27] [sEVERE] Downloaded '\tekkitlite\bin\jinput.jar'
[23:01:27] [sEVERE] Downloading 'http://s3.amazonaws.com/MinecraftDownload/lwjgl.jar'
[23:01:28] [sEVERE] Downloaded '\tekkitlite\bin\lwjgl.jar'
[23:01:28] [sEVERE] Downloading 'http://s3.amazonaws.com/MinecraftDownload/lwjgl_util.jar'
[23:01:29] [sEVERE] Downloaded '\tekkitlite\bin\lwjgl_util.jar'
[23:01:29] [sEVERE] Downloading 'http://s3.amazonaws.com/MinecraftDownload/windows_natives.jar.lzma'
[23:01:29] [sEVERE] Downloaded '\temp\natives.jar.lzma'
[23:01:29] [sEVERE] Extracting \temp\natives.zip to \tekkitlite\bin\natives
[23:01:29] [sEVERE] Extracted \temp\natives.zip to \tekkitlite\bin\natives
[23:01:30] [sEVERE] Downloading 'http://206.217.207.1/Technic/mods/basemods/basemods-tekkitlite-v0.5.2.zip'
[23:01:30] [sEVERE] Downloaded '\temp\basemods-tekkitlite-v0.5.2.zip'
[23:01:30] [sEVERE] Extracting \temp\basemods-tekkitlite-v0.5.2.zip to \tekkitlite
[23:01:30] [sEVERE] Extracted \temp\basemods-tekkitlite-v0.5.2.zip to \tekkitlite
[23:01:30] [sEVERE] java.io.IOException: Mod 'balkonsweaponmod' version 'v1.10-1.4.6' is missing from the mod library
[23:01:30] [sEVERE] at org.spoutcraft.launcher.modpacks.ModPackUpdater.updateModPackMods(ModPackUpdater.java:61)
[23:01:30] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm$3.doInBackground(LoginForm.java:831)
[23:01:30] [sEVERE] at org.spoutcraft.launcher.gui.LoginForm$3.doInBackground(LoginForm.java:807)
[23:01:30] [sEVERE] at javax.swing.SwingWorker$1.call(Unknown Source)
[23:01:30] [sEVERE] at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
[23:01:30] [sEVERE] at java.util.concurrent.FutureTask.run(Unknown Source)
[23:01:30] [sEVERE] at javax.swing.SwingWorker.run(Unknown Source)
[23:01:30] [sEVERE] at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
[23:01:30] [sEVERE] at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
[23:01:30] [sEVERE] at java.lang.Thread.run(Unknown Source)
[23:01:31] [sEVERE] Loading Launcher from 'techniclauncher/tekkitlite'
P.S.- It may be worthwhile to ignore such exceptions and alert the user, so they can at least grab all the other mods and have the option of downloading the single mod that failed manually.
