CSRF: Value is required and can't be empty

Hi everybody,

we’re experiencing the “CSRF: Value is required and can’t be empty” when trying to modify or implement the metadata in Botanica · De historia stirpium commentarii insignes · Unife Virtual Heritage.
Does it happen to anyone else?
Has anyone succeeded in fix this problem?

Thank you

Hmm, so I believe the issue here is the number of media that you have on that item. It appears to be quite large.

If you have hundreds of media, there’s a known issue where the default PHP settings won’t allow you to add more. Currently the workaround is to increase the php.ini setting max_input_vars.

At the moment we have solved it by selecting different elements and changing or adding the metadata.

Screenshot for example.