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`='11ad4159750cca35efd2ed4d59ba0c39',`time`=1711674147,`ip`=X'3690e9c6',`location`='/showthread.php?tid=302&pid=735',`useragent`='claudebot',`location1`=8,`location2`=302,`nopermission`=0