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 ('567e7f72373038c2bbbd1f8f396e9dac', -1, 1714246579, 1714246579, '12bc6c36', 7, 0)

Line : 158
File : sessions.php