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`='12a03f58f6ad30e746b0bad413548391',`time`=1711701161,`ip`=X'2cc8ed70',`location`='/showthread.php?tid=449&action=newpost',`useragent`='claudebot',`location1`=10,`location2`=449,`nopermission`=0