Thanks Janet B
One of my other websites (NB) is down again. And it appears to be the same problem we had last month. It starting becoming very slow on Monday and all but crawled to a stop by Tuesday.
Excessive traffic to the site was causing stability problems for the other sites sharing the server so the ISP took my site down until the issue can be resolved.
I’m looking into the issue now. I don’t expect an immediate solution to the problem.