phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './why9work_phpbb1/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) VALUES ('7a755ef0455818cab8f5d93b35e8cc84', -1, 1469855933, 1469855933, 'adf53666', -9, 0)

Line : 158
File : sessions.php