Hi Laurent,
Thanks for the reply. I have attached the requested files. The virgo log is from the vCenter Server Appliance and the extension data is in a screenshot, for expediency.
What I mean by downloading the bundle via curl is that I ssh'ed into the vCenter Server Appliance and used curl to download the bundle. I did this in order to make sure there were no issues with vCenter connecting to the web server where I had staged the plugin bundle.
Many thanks.