phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1194 Table 'phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('7f56ca44da1d6fb18b67921c647b38eb', -1, 1518902589, 1518902589, '3692d608', -4, 0)

Line : 158
File : sessions.php