phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './titanic/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, session_admin) VALUES ('85f77f35d6484e9ebbb62e84193a85cd', -1, 1503290723, 1503290723, '3650ae31', 0, 0, 0)

Line : 187
File : sessions.php