I have not experience this before this afternoon. How can I fix this? I looked up similar questions any others worked with domain mapping.. I did not change my domain mapping.
Below is the message I am getting when after the WPMU plugin begins to download and install.
Downloading install package from https://premium.wpmudev.org/wdp-un.php?action=install&key=8556de0dc430cf7b0e4d02be26ea23e3df7b2197&pid=123…
Download failed. Forbidden