phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 144 Table './foro_fida/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 ('9d9d6ef4f001151779375ccaaf0b67db', -1, 1540206326, 1540206326, '36c637a7', 17, 0, 0)

Line : 187
File : sessions.php