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`='ac692abd884dcfe5666d149db95d1163',`time`=1711648901,`ip`=X'2cd42795',`location`='/showthread.php?tid=379&action=newpost',`useragent`='claudebot',`location1`=5,`location2`=379,`nopermission`=0