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`='12249f8022aa5477a264cf50729acc52',`time`=1711700882,`ip`=X'22cfb48d',`location`='/showthread.php?tid=667&action=lastpost',`useragent`='claudebot',`location1`=6,`location2`=667,`nopermission`=0