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, session_admin) VALUES ('04978a32037f128ce082c58fb984f5b1', -1, 1747249387, 1747249387, '0d3b3899', -2, 0, 0)

Line : 189
File : sessions.php