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 ('de629c584e0a3d07ea2362839c79ac79', -1, 1513575196, 1513575196, '365a5ccc', 2, 0, 0)

Line : 187
File : sessions.php