Hello all,
I upload a alteryx app on our company Alteryx gallery, and call this app from an external website via REST API. It worked well but is down now.
There is an unknown error when I saving the app to our company gallery as the following image:

Once I try to save any app to our company alteryx gallery, even some official sample apps, it can save but always gets an error when saving the workflow :" There was an unknown error validating your workflow. This may cause issue when running in gallery". So I cannot run the app on the server. But the same app can save and run on Alteryx public gallery.
I cannot find any issue and any clues from this, dose anyone have experience and knowledge on this issue? That's very important to us because it is a business application and need to be fixed as soon as possible
Thank you very much.