Anti-Revoke DNS
Install the Anti-Revoke DNS
By installing the Anti-Revoke DNS this prevents your apps from being revoked as frequently if apple revokes the certificate you installed ProStore with.
To install the Anti-Revoke DNS, on your iPhone or iPad, go to this link: https://github.com/esigncert/khoindvn/releases/download/DNS/signed_khoindvn.mobileconfig. A popup should appear, where you should click Allow, then Close.
Next, go to Settings, and press Profile Downloaded. Tap the Install button, then enter your passcode if prompted and then press Install again. Finally, click the final Install button if asked again.
Make sure to restart your device after installing the DNS, and now you are able to continue installing ProStore with hopefully no revokes!