We have been distributing apps developed with Xcode in-house from our company website, but at some point during distribution, as shown in the image below, the app name "App name" cannot be installed. error occurred and I could not distribute the app to the device. (with a gray icon on the home screen).
The ipa file can be installed directly from Xcode's Devices and Simulators without any problems. It is also possible to install using MDM software such as LANSCOPE. Therefore, we believe that there is no problem with the ipa file itself or the provisioning profile.
If anyone has any information on the cause of this problem or what we should do, please let us know.