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`='77fb0aed2b5e5c06c51dcb089fff2db3',`time`=1711723198,`ip`=X'2cde3f43',`location`='/showthread.php?tid=400&pid=2798',`useragent`='claudebot',`location1`=9,`location2`=400,`nopermission`=0