BeTheme error message

I cannot update my BeThem theme from 20.9.5.9 to 21.0.6 and my
Slider Revolution - Premium responsive slider

I Always have this error message :
An error occurred while updating Betheme: The archive could not be installed. This package does not contain any files.

Hi,

Thanks for asking your question at Envato forum.

This is your item support

you can ask anykind of question about your purchase theme author @muffingroup at here as a comments

If they ask about purchase key then collect from Here

Still have any question open a Envato help ticket from Here

Thanks

Hope this will help you https://forum.muffingroup.com/betheme/discussion/44253/can-t-update-to-version-21-0-2 to see the support team solution answer you will need to login.