phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ac91f5df7a8e19930c0fc586e8d00899' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('ac91f5df7a8e19930c0fc586e8d00899', -1, 1715580722, 1715580722, '12dd1b9b', 4, 0, 0)

Line : 187
File : sessions.php