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 ('3edee499f2b34e5f9972f1f56e3b7afc', -1, 1714684319, 1714684319, '12bf0dff', -8, 0)

Line : 158
File : sessions.php