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`='50de480573143ce705eed71626d04a8e',`time`=1711698808,`ip`=X'03ebe5fb',`location`='/showthread.php?tid=6742',`useragent`='claudebot',`location1`=5,`location2`=6742,`nopermission`=0