phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('3e9e84efd2ab55e36c5b5605b7485afa', -1, 1714585102, 1714585102, '12bcafb6', 20, 0)

Line : 158
File : sessions.php