phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './realesta_33/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 ('4444d613c42c3022b56d4b10f0d54a3e', -1, 1511230842, 1511230842, '3651c3f0', 0, 0, 0)

Line : 187
File : sessions.php