Tailscale Issue on Synology NAS - HELP

I can’t set it up:

In addition, I tried to install Tailscale manually by SSH into the NAS and running the curl command but that didn’t work either.

I upgraded Tailscale on my Synology (package out of date) on 23 June. Since then tailscale has not connected. When I open tailscale I get the same screen shot as jtmpush18. I get a further error message - "Failed operation: Unexpected token ‘<’, "<!DOCTYPE "… is not valid JSON ".