Ezproxy is used to access library ebooks and ejournals, usually from https://libguides.ZenUni.ac.uk
If the following message is seen
Then log a call with itservicecentre@ZenUni.ac.uk for team BS to amend the Ezproxy configuration.
Please give the weblink of the site that was being accessed eg: in the above screenshot the site was
In the Ezproxy config the site is probably listed as http:// and that needs to be changed to https://