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`='39b9e270406ad4708b6e100a4e6ace0c',`time`=1711671544,`ip`=X'36a734ee',`location`='/showthread.php?tid=310&pid=743',`useragent`='claudebot',`location1`=8,`location2`=310,`nopermission`=0