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 ('4c9df0cf4d3d87fcc1c9c9e2e9a9c5ff', -1, 1715197070, 1715197070, '038bf08e', 7, 0, 0)

Line : 189
File : sessions.php