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`='b6d63a3f7f42b4cc5f1ad7321b913c2d',`time`=1711687461,`ip`=X'12cc231e',`location`='/showthread.php?tid=278&action=lastpost',`useragent`='claudebot',`location1`=8,`location2`=278,`nopermission`=0