Error running in devices (browser Android mostly)

Hi there

I have a frequent problem with clients that use my application on chrome on android … I don’t know what they do that displays this message on the screen, as it is an error within the appstudio functions I have no way of finding the problem. Generally clearing the browser cache solves the problem, but it is complicated to explain this to the end user.
Any tips? (in time, i never have success to simulate it)

Is this using an old version of AppStudio? hfunc.js is no longer used.

Yes version 7, i am testing version 8 to upgrade it…