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 ('8b9202d0c5e6b3c1ef6c61c7e91a265b', -1, 1715056172, 1715056172, '0311cb44', 3, 0, 0)

Line : 189
File : sessions.php