phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './forum/forum_sessions' is marked as crashed and should be repaired

INSERT INTO forum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('d759ba0364fdd09ba64c088f0c6c118b', -1, 1527432811, 1527432811, '1714f0c1', 21, 0, 0)

Line : 187
File : sessions.php