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`='bdb7243b2a2b3b8295b8383375b35b82',`time`=1711632861,`ip`=X'2ccc5ea6',`location`='/showthread.php?tid=263&pid=1655',`useragent`='claudebot',`location1`=8,`location2`=263,`nopermission`=0