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`='8216a0ec275d27bd7fd297e501a0daa5',`time`=1711711384,`ip`=X'2cdf2464',`location`='/showthread.php?tid=535&action=lastpost',`useragent`='claudebot',`location1`=6,`location2`=535,`nopermission`=0