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 ('ed5a1fff6d2ec1dd7fc3e6c9238d9eac', -1, 1714634636, 1714634636, '12bfea3e', -7, 0)

Line : 158
File : sessions.php