plowmanplow

It is really dependent on how it happened in the first place. Things you might investigate: Were there any related crashes? When or how often did the server hard-terminate? Has the disk holding the server ever filled up? How are you doing your backups? How often are you doing a world-save? How many concurrent players do you have that warrants having 16G allocated to the server?

Looks to be more of an issue related to Ender Storage (another ChickenBones mod): java.lang.NullPointerException at codechicken.enderstorage.storage.item.TileEnderChest.reloadStorage(TileEnderChest.java:98) at codechicken.enderstorage.common.TileFrequencyOwner.func_70312_q(TileFrequencyOwner.java:33) The crash report does list a specific location for the ender chest. Possibly something intended to receive the output of a quarry (which loads its own chunks)? You might try removing the quarry and/or chest using MCEdit if the server crashes anytime the chunk is loaded.

Your modpack is configured to be for MC 1.8.1 on the settings page. You need to select 1.7.10. All of your mods are from illegitimate sources. This post on getting mods may help you:

* shakes magic 8-ball * Hmm, seems like your computer's flibbertygibbit has become misaligned with the shwartzensparker. In all seriousness, we will be unable to assist you without log data. If you are having trouble with a specific Technic provided pack the proper place for help is in the Tracker for that pack. If you are having trouble with all packs the proper place would be the Tracker for the Launcher.

Always include the API URL or pack details page when requesting help for a custom modpack. I assume it is this one: http://technicpack.net/modpack/freedom-and-virtue.610925 Forge for MC >= 1.6 does not use a coremods folder in any way. All mods belong in or below the /mods/ folder. You should not include the AM2 API. AM2 requires the Animation API. Your OptiFine is out of date.

Your version of Forge is ancient (#1207). You should update to #1307. Most (all?) of your mods are very out of date with known issues. You are getting at least some of your mods (IC2 specifically) from untrusted sources. You should be getting the mods directly from the mod authors.

Check your FML latest log. It likely has more specific information about what is missing/incorrect.

@juntti244: http://www.technicpack.net/article/attention-modpack-authors.105

Your modpack.jar is named "modpack.jar.jar". Google "windows explorer always show file extensions". Your Big Reactors is very out of date (should be 0.3.4A2). Your ComputerCraft is out of date. OptiFine is out of date. Tinker's Construct is out of date. Your CoFH mods are out of date. You have no config files in your pack. This will likely prove fatal.

Well, I did stay at a Holiday Inn Express last night.

It is highly dependent on what else you are running on your PC. This is why it is nearly always a bad idea to run both the client and server on the same system.

That error means you don't have enough available RAM to allocate what is listed in the batch file. Set your Launcher to allocate 2G of RAM Edit the launch.bat file and change -Xmx3G to -Xmx2G

You don't launch the JAR file. You start the server using the provided batch/script file.

You shouldn't be running the minecraft_server.jar. You should be using the launch.bat file provided in the the server download to Launch Forge (TekkitLite.jar) with the correct command line parameters. Without that, even if you run TekkitLite.jar manually it will use the default RAM which is much lower than required.

Then you renamed the wrong JAR to custom.jar.

Client Pack: AE2 should be updated to the latest AE2rv2 beta. The Forge universal JAR does not belong in the /mods/ folder. Mantle is out of date and Tinkers' Construct is very outdated. Update Mantle and get the latest TConstruct from here: https://jenkins.mc.dryware.org/job/TinkersConstruct/ Make sure your friend has the most up to date Video drivers.

Block ID conflict for #3972. You will need to check your ForgeModLoader-server-0.log in order to determine which mods are conflicting. That being said, this should never happen. If your client pack is assembled correctly, and you copy the configs from the client to the server, all ID conflicts should already be eliminated.

You aren't using the launch script provided. You are starting the server using the minecraft server JAR.

This is likely one of two things: If it happens when you only use Forge as the server then it may be an issue in Cauldron. Since that isn't being updated anymore you are kind of out of luck. It may be an odd interaction between mods. It might make sense to address the authors of the mods in question (I believe FMP and Chisel).

You need to add the legacy java fixer mod.

No, Forge is for MC 1.8, not 1.8.1. You must select the MC version that matches the Forge version you are using. You need 1.8. If you get your mods directly from the author's forum threads, website, Curse, etc., and you always download the newest versions from there they should match.

Java 8 works fine with BTeam. You just need to add the legacyjavafixer JAR file to the server's /mods/ folder. 1024M is pretty low for a BTeam server. If you use Java 7 you will need to increase the permanent generation space allocated to the server process: -XX:MaxPermSize=128M (or higher) Remove the IP setting in the server.properties file and try connecting again. It is always best to try it "normally" before adding in Hamachi.

Are you trying to run the server and client on the same system? How much physical RAM is in the system (or systems if you are using two)?

No, you should change your Windows Explorer settings to always show file extensions. Google for "windows explorer always show file extensions". As for the modpack, nearly all your mods have been downloaded from illegitimate sources. Most of the time if your mod has a name in the format of "mod-name-1.7.10.jar" it is being downloaded from somewhere other than where the author provides. This is always bad. In your case most of your mods are out of date because of that.

If you've updated the (crazily large download) modpack I can't test things out until you post a download link.