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 ('45660d3cfdc49a836bf2a6c5ff698c3a', -1, 1715316661, 1715316661, '12ddbb79', -9, 0, 0)

Line : 189
File : sessions.php