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 ('dfd1c12412cc934140686a4e366df12e', -1, 1715004603, 1715004603, '1275d8e5', 0, 0, 0)

Line : 189
File : sessions.php