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`='54c5daebf7809ff48c2d8eceb98ec389',`time`=1711693728,`ip`=X'12e8bb2f',`location`='/showthread.php?tid=438',`useragent`='claudebot',`location1`=28,`location2`=438,`nopermission`=0