When the plugin is loaded, unloaded, and/or syncs data (local I think, not external), this error is thrown to the console:

http://hastebin.com/ujipewazov.rb

Running the latest Spigot 1.8.8 build & BanManager development build number 208 (currently latest).
I'm behind BungeeCord (latest development build) on CentOS 6.6 x64, Java 8u66, MariaDB.

#441

Solution is in the issue linked above.

Going to leave this issue open to fix it once and for all.

Which version did you update from? 5.6?

Thanks, fixed by running ALTER TABLE``bm_player_mute_records``ADD COLUMN``soft``TINYINT(1); manually. And yeah, I updated from 5.6.