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`='7bc7bd738cc2c554fb0abf397884cf69',`time`=1711695016,`ip`=X'035a2356',`location`='/newreply.php?tid=297&replyto=1823',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0