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 ('281f6cc26fd52b3e9bdd6b8f7ecfa6fb', -1, 1537944537, 1537944537, '369e34a6', 20, 0, 0)

Line : 187
File : sessions.php