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 ('5511f8376d43f3b249dc599285f60d89', -1, 1550941515, 1550941515, '22e5c2c6', 20, 0, 0)

Line : 187
File : sessions.php