phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO filmscd_phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin, is_robot) VALUES ('9dd81bd7729ec1a27e0b1676bfde8e39', -1, 1711631797, 1711631797, '2cd54b4e', -1065, 0, '0', '0')

Line : 175
File : sessions.php