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`='3485fce388e1d4b29c138c7ed840f0df',`time`=1711665730,`ip`=X'12eaa56b',`location`='/showthread.php?tid=6740&action=lastpost',`useragent`='claudebot',`location1`=5,`location2`=6740,`nopermission`=0