HELP - Can't access Config - "0 Call to a member function children() on null"

Hello, I went into Configuration and remove four custom labels. When saving, the software gave the following error.

0 Call to a member function children() on null

Now I can't do anything in the configuration tab as it gives this error each time I try to select it.

LMK as I cannot use Eshop now.

Thanks

Martin

r

Dear Martin,

The reason because you made a mistake by deleting the content of fields.xml file.

I just checked and resolved it for you via Skype chat.

Sincerely, Giang