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`='51b8925873430ff1d988cc8988fa8fb9',`time`=1711697960,`ip`=X'22cfb2ec',`location`='/showthread.php?mode=threaded&tid=48&pid=68',`useragent`='claudebot',`location1`=7,`location2`=48,`nopermission`=0