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`='7e8ee473ebd7f99ebe5e602f1db5c630',`time`=1711677711,`ip`=X'2ccbdb75',`location`='/showthread.php?mode=threaded&tid=555&pid=4540',`useragent`='claudebot',`location1`=6,`location2`=555,`nopermission`=0