Unable to update/install "Minimalist Build Set" Add-on by Delisoft Studios

I recently purchased an add-on called "Minimalist Build Set" by Delisoft Studios from the Marketplace. After the initial download, the button changed to "Update." However, when I click the "Update" button, there is no response at all.

I have already tried the following troubleshooting steps to fix the issue, but none of them worked:

Deleting the add-on and attempting to reinstall it.

Clearing the cache from the Minecraft game settings.

Clearing the app cache from the Android system settings.

Despite these efforts, the "Update" button still remains.