[ENH] Raising errors when website links fail

[TonyBagnall]

Describe the feature or idea you want to propose

recent period of tsc.com being down, and changes I introduced for results loading, have highlighted a confusing errors that can be raised when accesses to it or other repos fails. See #1357

Describe your proposed solution

I am reconfiguring the service so it gets a dedicated IP, and will then make a backup to call if the connection fails

[TonyBagnall]

I think I should encapsulate the read in a function, then add up a backup location for when tsc.com is down. I am trying to sort it out with the service provider though.

[TonyBagnall]

This has been fixed, can be replaced with a more specific issue for backups etc