Our web host has informed me that our website (as well as others) has been under "attack" since the weekend...
I presume he means DDoS attacks (Distributed Denial of Service attacks). That's when bad people get lots of computers to load up your website repeatedly, to overwhelm the servers. It's harmless for the users, it just means it's hard to load up the website.
Our web host has been doing what they can - so when it goes down, we keep coming back up, too...
Thanks for your patience!
Apparently these kinds of attacks have increased five-fold during the coronavirus pandemic!
DDoS attacks surge 542% amidst COVID-19 pandemic - report