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 ('86952f492f22b3c4d546d736a5a2f82f', -1, 1715131629, 1715131629, '0316f8d0', -7, 0, 0)

Line : 189
File : sessions.php