phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './twisty_phpb1/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 ('05cdd4e1344f8269ae3800f87989eb1f', -1, 1513588490, 1513588490, '365a9fc0', 4, 0, 0)

Line : 187
File : sessions.php