Cannot add Smartapp in classic app

i try to use an automation in classic app > Smartapps > add smartapp
and it doesnt work!
not responding… try to delete the app, another mobile…nothing

there is an other way to add smartapp ??

The ST mobile server may be having issue or the ST app may be having an issue. Since it’s happening with 2 devices then it’s likely a ST server issue. Try after a few hours. You could also add the SmartApp from the new ST app (which is on a different server).

The general steps for install SmartApp code and then installing it on the new ST app (Steps 9/10) can be found here.

How i can install from the new app??