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`='9e3498399275b1e92b1378aebc26ea0e',`time`=1711668265,`ip`=X'36e123e0',`location`='/showthread.php?tid=56',`useragent`='claudebot',`location1`=4,`location2`=56,`nopermission`=0