phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_mw_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('5964974f6011413122e5ff3a2277e92b', -1, 1490611556, 1490611556, '36a79df1', 16, 0, 0)

Line : 187
File : sessions.php