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`='1b01b286ae87301bf7f08c14b476e2e7',`time`=1711697040,`ip`=X'03e7d9d1',`location`='/newreply.php?tid=307&replyto=1873',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0