Error when add / edit new fields


I can’t edit or add fields in Studio, I receive the following message when I try to add / edit fields.

Added a screenshot.

Thanks for any help!


Welcome to community!

It’s may be different problems. For start to do this:

Thanks @p.konetskiy ,

I checked them both, still having the issue.
I also have a lot of undefined everywhere, don’t understand why :frowning:

This is all happened after a migration to a new server, i copied the last backup to the new webserver, all the data is okay, but having some issues like adding /editing and a lot of undefined’s.

Thanks for your reply

Which php version do you use?

the php version is 7.0 @p.konetskiy

Switch on for test:
Admin->System Settings->Developer Mode


Did that, see nothing strange, I gived the rights in the www root to 775, but then i am receiving a internal server error:

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.

Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.

But if i use 755 it is okay.

You should set correct owner. Check item 4:

Thanks @p.konetskiy ,

But I don’t understand that exactly, i’m a noob sorry for that :frowning:

I’m trying to give acces over FTP, the webhosting is from another company, I have acces in the FTP & all files within, also have access to MySQL.

What do I need to change in this situation ?

Many thanks for your patience

You should have access by ssh for check owner and group for files
Or be sure that parameters is correct.

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