phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '479128f360cd9a2e955377a1f4b4dbfa' 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 ('479128f360cd9a2e955377a1f4b4dbfa', -1, 1764723483, 1764723483, 'd849d81b', -4, 0, 0)

Line : 187
File : sessions.php