hi guys, I'm currently having problems with the server recently. basicly every 7 - 12hours, the server gives an error that it says i have to delete session.lock manually and restart the server to avoid further problems. and i've done it for about four times now since two days ago. This is causing me serious problems what i found on the log file before the error came in : http://pastebin.com/cdkG3MPF what i see on the console while it was happening http://pastebin.com/PBqSbGY6 bounty : 15$ whoever gets to help fix this issue, you can give me instructions on how to prevent this from ever happening again and if it works, i will be paying you $15. if i have to delete the world, that's out of the options as there's 6months worth of builds in there and i dont have any plans on ever resetting it and will probobly kill the server instantly. player base : 40 - 70 when it's happening Most recent plugins i added : theunderground and yamler.