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`='371f53fa1af0f69618f02dd59bfcaa00',`time`=1711695537,`ip`=X'03dba7a3',`location`='/showthread.php?tid=539',`useragent`='claudebot',`location1`=5,`location2`=539,`nopermission`=0