Iconize | Use icon fonts in your Xamarin.Forms application | Form library

We're receiving the following message upon submitting our Xamarin.Forms iOS app to Apple's TestFlight.

Dear Developer,

We identified one or more issues with a recent delivery for your app, "[bundle name]" [bundle version] ([bundle version]). Please correct the following issues, then upload again.

ITMS-90338: Non-public API usage - The app references non-public selectors in [project name]: applicationWillTerminate, fontWeight, newSocketQueueForConnectionFromAddress:onSocket:, setOrientation:animated:, socket:didConnectToHost:port:, socket:didReadPartialDataOfLength:tag:, socket:didReceiveTrust:completionHandler:, socket:didWritePartialDataOfLength:tag:, socket:shouldTimeoutReadWithTag:elapsed:bytesDone:, socket:shouldTimeoutWriteWithTag:elapsed:bytesDone:, socketDidCloseReadStream:, socketDidSecure:, terminateWithSuccess. If method names in your source code match the private Apple APIs listed above, altering your method names will help prevent this app from being flagged in future submissions. In addition, note that one or more of the above APIs may be located in a static library that was included with your app. If so, they must be removed. For further information, visit the Technical Support Information at http://developer.apple.com/support/technical/

ITMS-90809: Deprecated API Usage - New apps that use UIWebView are no longer accepted. Instead, use WKWebView for improved security and reliability. Learn more (https://developer.apple.com/documentation/uikit/uiwebview).

Best regards,

The App Store Team

I have looked up the messages and made too many attempts to no avail. I'd appreciate it if someone could help having Apple to accept our submission.

Let me share more details about

This is a Xamarin.Forms app that we build using Azure DevOps's build pipelines (specifically, Xamarin.iOS task version 2.*) and release using Azure DevOps's release pipelines. We release that to Microsoft AppCenter and we then download the *.ipa from there. We submit it to Apple's AppStoreConnect TestFlight using Transporter app on the Mac from Apple's AppStore.

My toolbar contains :

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Main layout:

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Am I doing something wrong?

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