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`='776535af6981ab43e8877b10e189904d',`time`=1711631771,`ip`=X'36a3dd85',`location`='/showthread.php?tid=61&pid=98',`useragent`='claudebot',`location1`=4,`location2`=61,`nopermission`=0