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`='291297788588f1111bbf6f3941662735',`time`=1711728081,`ip`=X'23af717d',`location`='/ratethread.php?tid=42&rating=1&my_post_key=bc128e6e8d32638d31afbd4d01d78dc2',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0