phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('b459cc1fa11dcf5f76c68a6a5ef42485', -1, 1714712353, 1714712353, '030fbe90', 21, 0)

Line : 158
File : sessions.php