Thanks for reporting your issue. I assume you refer to testing your app with Felgo Live, which sometimes loses connection to the Live Server on your computer?
Felgo Live is still quite a new feature, and the latest Felgo Live Client version for iOS is unfortunately not released yet due to an App Store Review delay by Apple. So there might also be some issues coming from this version mismatch of the current Live Server + iOS Client versions.
If you prefer, you can switch to testing your application by actually building for iOS and deploying your app to your phone. Please see https://felgo.com/doc/vplay-deployment-ios/ for more information.
Best,
Günther
