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`='abda11b61d7e1c451155ef99833b9100',`time`=1711661544,`ip`=X'2cd76e8e',`location`='/member.php?action=profile&uid=52',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0