Disconnecting /xxxxxx Protocol error HELP?

i know im probably in the wrong place for this but i couldn't find a forum with an answer or where i can post my problem

i run a custom mod-pack with a whitelist and i keep getting my servers console filled with this:

[INFO] Disconnecting /66.222.250.170:51797: Protocol error
2014-08-20 09:24:58
[INFO] /66.222.250.170:51797 lost connection
2014-08-20 09:24:59
[INFO] /117.201.104.186:42021 lost connection
2014-08-20 09:24:59
[INFO] Disconnecting /117.201.104.186:44413: Protocol error
2014-08-20 09:24:59
[INFO] /117.201.104.186:44413 lost connection
2014-08-20 09:25:00
[INFO] Disconnecting /111.68.47.71:43999: Protocol error
2014-08-20 09:25:00
[INFO] /111.68.47.71:43999 lost connection
2014-08-20 09:25:00
[INFO] Disconnecting /105.236.196.251:49436: Protocol error
2014-08-20 09:25:00
[INFO] /105.236.196.251:49436 lost connection
2014-08-20 09:25:01
[INFO] Disconnecting /103.1.69.24:49674: Protocol error
2014-08-20 09:25:01
[INFO] /103.1.69.24:49674 lost connection
2014-08-20 09:25:01

there is no one on my server when this happens, so i have no idea what's going on

Here is the paste bin for full server console:
http://pastebin.com/Mx6bLEz9

 

Locked. Sorry, we can only support CraftBukkit here. Try seeking support where you found your mod pack.