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`='39d147d64985389e5b97d84d4f269683',`time`=1711708764,`ip`=X'12d1e53b',`location`='/ratethread.php?tid=344&rating=3&my_post_key=8398e685dcc1973d504ac3adc8d1f06e',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0