phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 144 Table './forum_members/phpbb_sessions' is marked as crashed and last (automatic?) repair failed

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('5b90e288b48e210597ea1ca1638fc18c', -1, 1524699347, 1524699347, '36c64e79', -9, 0)

Line : 158
File : sessions.php