First, you have an AAAA record in your DNS but connections using IPv6 don't work. You should either correct your IPv6 config or remove the AAAA record from the DNS. It is not causing this particular problem but can cause other problems. If you correct your IPv6 make sure to periodically test it to ensure it is working. One way is with: https://letsdebug.net
As for the "Invalid response" error ... I assume the error code on the end of the message was 404. Some of the msg was truncated.
This means your -w folder does not match the DocumentRoot in your LiteSpeed server that processes HTTP requests for that domain name.
I see you got a certificate yesterday. And, your LiteSpeed server is using it for HTTPS connections. What changed between yesterday and today? And, why do you need another cert today when you already have one?
I don't know what you mean by that. But, you still have an AAAA record in your DNS for this domain name. And, IPv6 connections using that address still fail. If you don't have a way to reliably test IPv6 you should remove the AAAA record.
patrick-hove-construction.co.za. 0 IN A 161.97.69.237
patrick-hove-construction.co.za. 0 IN AAAA 2a02:c207:2243:9511::1
Both of these IP addresses are for Contabo. You just don't have the correct IPv6 address or something else in your config needs correcting for IPv6. You may wish to speak with Contabo about that.
Once you get this sorted some or even all of your other problems will go away.