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`='efa8bd7d7533713cb4a81686862b376f',`time`=1711623015,`ip`=X'03ef3957',`location`='/showthread.php?tid=453&action=newpost',`useragent`='claudebot',`location1`=17,`location2`=453,`nopermission`=0