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`='c78f7706110317f6d5b6cd470c13ea3a',`time`=1711692152,`ip`=X'36ae55cd',`location`='/newreply.php?tid=264&replyto=1659',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0