phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4c8b6ca87a346c418cc9f164725b561e' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('4c8b6ca87a346c418cc9f164725b561e', -1, 1770095260, 1770095260, 'd849d805', -9, 0, 0)

Line : 187
File : sessions.php