phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './NPSiteDB/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 ('647a5e2c9d0e4b446c5e9d7ae8473de5', -1, 1508469691, 1508469691, '36c448a2', 16, 0, 0)

Line : 189
File : sessions.php