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`='2eef88def2d296c7383a1d8ae35f1482',`time`=1711655847,`ip`=X'36a08521',`location`='/showthread.php?tid=560',`useragent`='claudebot',`location1`=6,`location2`=560,`nopermission`=0