phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'BP_sessions.session_user_id'

INSERT INTO BP_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a893de0bb22465a5e7a6a5a5532ad5a2', -1, 1762630965, 1762630965, '12610e5b', 0, 0, 0)

Line : 193
File : sessions.php