MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
145 - Table './balkania_forum/mybb_sessions' is marked as crashed and should be repaired
Query:
REPLACE INTO mybb_sessions SET `uid`=0,`sid`='70e2abd44298b2a9572f95e4cbbbac52',`time`=1711616255,`ip`=X'12e9dfbd',`location`='/showthread.php?mode=threaded&tid=533&pid=4173',`useragent`='claudebot',`location1`=5,`location2`=533,`nopermission`=0