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`='18d697cdf850a369ad78e3f89e051b3f',`time`=1711706682,`ip`=X'035e4d1e',`location`='/showthread.php?tid=41&action=newpost',`useragent`='claudebot',`location1`=5,`location2`=41,`nopermission`=0