phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ac1c3b437ff53ff594eb0fd3dc76ff39' for key 1

INSERT INTO phpbb_zsessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('ac1c3b437ff53ff594eb0fd3dc76ff39', -1, 1714255452, 1714255452, '0387dba6', -7, 0, 0)

Line : 187
File : sessions.php