Hello Petrache Nikolae,
Yes you are right exist small problem with it. This field shouldn't show on add listing page because this field generating automatically. You can fix it manually:
Please go to ftp: templates >> your_template >> tpl >> blocks >> field.tpl
find first line:
Code:
Only registered members can view the code.
and after it add condition:
Code:
Only registered members can view the code.
then find last line with code:
Code:
Only registered members can view the code.
before it add end of condition:
Code:
Only registered members can view the code.