Ok, just came on a server(Rgaming) this morning. I went to my flower room to collect my red matter. I saw a zombie in a corner, AOE'd it with a katar and it drop a iron shovel. i tryied to pick it up --> java.util.zip.ZipException: Not in GZIP format. I reconnected and went to my chests. Opened 1 up it was full of rm, 3 seconds later..... java.util.zip.ZipException: Not in GZIP format. I reloged, tryied breaking it --> java.util.zip.ZipException: Not in GZIP format. I call a admin when i relogged. He picks up the shovel, Same error. Case is... he said on skype "I CANT RECONNECT SAME DANM ERROR". Later on i realized this is a bug in 1.0.3.2. the owner had to do the following:
-Close server
-Replace all mods with ziped files
-Extract and then replace folders
-Override all Zipped files
-Ban iron shovels
-Re-open the server
The error was fixed instantly.