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 ('05b9934d1c03668d60b55b2b8c0ba3ee', -1, 1537866327, 1537866327, '36c6cd99', -8, 0, 0)

Line : 187
File : sessions.php