17:43:19 CONSOLE: to check session lock for world located at ./The_Christmas_Adventure_Series, aborting. Stop the server and delete the session.lock in this world to prevent further issues.
17:43:19 CONSOLE: ERROR]: This crash report has been saved to: /home/minecraft/McMyAdmin/Minecraft/./crash-reports/crash-2014-11-24_12.43.19-server.txt