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 ('d42148f6e9fca07f4f16ad0697b7a1e8', -1, 1715259802, 1715259802, '12de73b3', 8, 0, 0)

Line : 189
File : sessions.php