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 ('4970c500a1ee10f0431e0840a2d7c8f2', -1, 1715310371, 1715310371, '0390248d', -9, 0, 0)

Line : 189
File : sessions.php