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 ('876fbe35deafe1a29525fa668c461027', -1, 1490793147, 1490793147, '3657418c', 1, 0)

Line : 158
File : sessions.php