phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4966b9393e3b81624080366afa0a5e47' 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 ('4966b9393e3b81624080366afa0a5e47', -1, 1764714791, 1764714791, 'd849d818', -4, 0, 0)

Line : 187
File : sessions.php