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 ('f7d4c00a0caec61238c487cb672c1412', -1, 1757922259, 1757922259, 'd849d8ae', 5, 0, 0)

Line : 187
File : sessions.php