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`='4b6fc39afd14ad225b477e18aefe0573',`time`=1711721611,`ip`=X'36a27cc1',`location`='/showthread.php?mode=threaded&tid=594&pid=4581',`useragent`='claudebot',`location1`=6,`location2`=594,`nopermission`=0