phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './newklub31/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 ('7361d4c1a8150cdcb96d6479b3923e8c', -1, 1475033052, 1475033052, '36e30e17', -4, 0, 0)

Line : 187
File : sessions.php