phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('ad16b31b7366c8a376597ca0ccc2521b', -1, 1715217771, 1715217771, '340e820d', 0, 0, 0)

Line : 189
File : sessions.php