Problem Having issues on my Direwolf20 1.7 server. Need advice

[TL140]

• What OS are you running? Windows 8.1 Professionial
• Are you using minecraft hosting provider or a dedicated/local server not designed for minecraft? Using my own machine, non designated
• What version of FTB are you using? (Dont just say latest tell us the version) Direwolf20 1.7
• Did you add any mods to the server pack? N/A
• What are your server specs? i7 4990k, dual 980 GTXs, 32GB of ram, 12 allocated to server.
• A good detailed paragraph about the problem

I can get people to connect to my server, but after a while, they get "internal server error" or "connection was forcibly closed by the remote host". I have found a brutal fix and that is to delete the playerUUID.dat file and that squares them up. I thought it was a corrupted chunk, and i found the chunk, regenerated it, and it in MCedit, and it was able to get me and others out of there, but the issue still happens in other areas of the world. Areas that other players can go to.

 

[lenscas]

WIthout a log of the server when it happens there is no way for us to provide help

 

[TL140]

Wasn't sure if you needed them or not, as i've seen many issues like this resolved without the use of one on the forums. None of them work for me though. I'll have to swim through my logs and will post it then.

 

[TL140]

[15:24:13] [Server thread/WARN]: Failed to handle packet for /XXX
java.lang.NullPointerException
    at factorization.coremodhooks.HookTargetsServer.collides(HookTargetsServer.java:122) ~[HookTargetsServer.class:?]
    at factorization.coremodhooks.HookTargetsServer.checkHammerCollision(HookTargetsServer.java:84) ~[HookTargetsServer.class:?]
    at net.minecraft.world.World.func_72829_c(World.java:2202) ~[ahb.class:?]
    at net.minecraft.network.NetHandlerPlayServer.func_147347_a(NetHandlerPlayServer.java:379) ~[nh.class:?]
    at net.minecraft.network.play.client.C03PacketPlayer.func_148833_a(SourceFile:137) ~[jd.class:?]
    at net.minecraft.network.play.client.C03PacketPlayer$C06PacketPlayerPosLook.func_148833_a(SourceFile:20) ~[jf.class:?]
    at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212) ~[ej.class:?]
    at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165) [nc.class:?]
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659) [MinecraftServer.class:?]
    at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:334) [lt.class:?]
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547) [MinecraftServer.class:?]
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427) [MinecraftServer.class:?]
    at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685) [li.class:?]
[15:24:17] [Server thread/INFO]: XXX lost connection: TextComponent{text='Internal server error', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null}}
[15:24:17] [Server thread/INFO]: XXX left the game
[15:24:27] [User Authenticator #11/INFO]: UUID of player XXX is XXX

-XXXs for player anonymity. This is the same error for anyone who has the issue.