phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 144 Table './forumcapes/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, session_admin) VALUES ('18b71bd648d9b20bdfd5a4bf2b85dd99', -1, 1544781473, 1544781473, '36a32a9a', 20, 0, 0)

Line : 187
File : sessions.php