phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './tfa/phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('21421351e53c1991d955f26ec1e69e81', -1, 1524679612, 1524679612, '1714a5b6', -4, 0, 0)

Line : 187
File : sessions.php