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 ('847130920c34d02d8535d3df626c2507', -1, 1715296706, 1715296706, '0381d357', -10, 0, 0)

Line : 189
File : sessions.php