App hider and cloner not working since upgrade to Android 11

I am using a calculator app that have other apps such as what's app and allows them to run a 2nd copy in a hidden environment. Since upgrading to Android 11, I am getting a "Generate optimize apk failed" error. The program is apparently open source, I think. Here are screenshots attached for the app. Can you please help me getting working again, then I would like to create an ad free app with many improvements if possible?

Taidot: Android, Mobile App Development, Java, Tietojärjestelmäarkkitehtuuri, C# -ohjelmointi

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Tietoa työnantajasta:
( 11 arvostelua ) Old Bridge, United States

Projektin tunnus: #27520906

3 freelanceria on tarjonnut keskimäärin $150 tähän työhön


Hello there, I've checked that you are facing issue with "Generate optimize apk failed" issue. I can provide you the solution of it, if you could give me the chance to work on your project. I am ready work with you a Lisää

$250 USD 7 päivässä
(14 arvostelua)

Hello, I read your description and looked images carefully. I have plenty experience of android app development. I will upgrade your project to Android 11 successfully by Sunday evening. I hope you contact me.

$100 USD 1 päivässä
(1 arvostelu)

Dear Manager, I have gone through your job requirement,I have 8 years’ experience in Software development industry. I have done lots of project in lots of technology like PHP, .NET MVC, JAVA, MOBILE PLATFORM LIKE A Lisää

$100 USD 7 päivässä
(1 arvostelu)