I am trying to:
Add more or edit existing custom fields in custom fields group. I have been looking through all of the forums and can't find a solution. This was the closest one to my issue and have updated PHP memory limits with no success. https://toolset.com/forums/topic/limts-on-number-of-fields/
Link to a page where the issue can be seen:
Issue is only showing in backend/admin secion
I suspect that the issue here is due to PHP suhosin's variables. I would suggest looking at the article below for assistance on how to resolve this one.
No Suhosin installed as far as I can see: hidden link
Any other ideas?
Using the login info I provided you can create a new group of custom fields but it eventually gets stuck again.
I had the same issue on my localhost installation and that's why I have moved to a live server, but the issue remains.
I believe this is a server issue as your entire site is loading extremely slowly, as it takes upwards of 23 seconds to load a page as well as timeout issues.
Can you use the duplicator plugin to provide a copy of the site so that I can test this issue here locally?
After diving deeper into your duplicator package I was able to find the issue. What was stopping you from saving was the 2 file fields.
The "Birth or adoption certificate" and "Identity document" fields. The problem was that you added texts to the default values however, these default value fields are expecting a URL.
To fix this you must add your placeholder text to the Placeholder section of the fields.