Thanks for letting me know about the rash of errors and Phyllis, I appreciate the detailed message.
I know that you'll all be shocked to learn that....drum roll....the host began doing rolling server maintenance last Tuesday, which reduced the number of active servers at any one time. They're supposed to alert me, so I can tell you, at least two days before scheduled maintenance begins to prepare for any outages. Of course they failed to alert me and the first two technicians I spoke with were tight lipped. I finally spoke with a manager this morning who admitted they were getting everything ready for Black Friday and Cyber Monday (for those unfamiliar, those are two really big online shopping days in the US, like Singles Day in China). As of 9am central time, the manager told me that everything was operating at 100% again. I've kept an eye on the server status page and every server has been up and running whenever I checked. So maybe we're actually through the rough patch.
I told the manager that he must alert me before any future maintenance and that I'l be filing a complaint with the BBB about the breach in the contract language that says they have to let me know about times when servers will be taken offline and sites may be down.
I appreciate everyone's patience and persistence this last week. Happy Thanksgiving to everyone who celebrates the holiday!