so in the last 2 days, the server my friends and I host/play on has been having an issue with storage drawers causing clients to be disconnected.
i'll post a pastebin of the crash log, but here's the line that i think is causing the issue:
Caused by: java.lang.NegativeArraySizeException at com.jaquadro.minecraft.storagedrawers.network.ControllerUpdateMessage.fromBytes(ControllerUpdateMessage.java:40)
link to pastebin : http://pastebin.com/TTRXy8rk

Update the mod if you can. That network packet doesn't even exist anymore in current builds. Hopefully, the Regrowth pack is nearing an update.