Thank you, Ismael.
Is there something different about the way the Enfold theme updates?

I use this theme on quite a few sites.
There is one site I have that I can’t auto-update but I am able to manually update it by uploading the theme via the WordPress dashboard.
It is on a host that many of my other clients use and they have no problems.

For this particular site that I am asking you about, I can’t even upload the theme via the Dashboard.
I haven’t tried the FTP way and I can’t imagine that it won’t work but I’m wondering what is going on.
This is a different host than I usually use so I can’t speak to whether I can easily update Enfold but other themes seem to update with no problem.

Is there something different going on with the upgrade-temp-backup directory with Enfold that doesn’t happen with other themes?
Would re-generating the token work? (Note that it has not helped with my other site that won’t update but that gives me a different error.)
Is there something I need to ask the hosting company to look at?

Thank you.