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`='421df8896a7cb65280faf45a190bebf8',`time`=1711709560,`ip`=X'36c4f85d',`location`='/showthread.php?mode=threaded&tid=259&pid=875',`useragent`='claudebot',`location1`=8,`location2`=259,`nopermission`=0