The web serve is having some issues today. I couldn't get into the account, or cPanel at their server. It is not related to Xenforo. There are les bugs in Xenforo than vBulletin. It usually stabilises later. I will put up a service ticket.
We have already purchased extra space and memory. It is a fluid situation that we are reviewing. I think this outage today is not space or resource, it is an issue at the whole web server which also serves many other clients.
The hosting is server in CA, and they are pretty good, quick to respond and sort things out. The bits they do are at server level though, not so much beyond that. Though they have helped us during the change over with server logs and problems we came across.
On software support, we do have good support form Xenforo, and also the Xenforo community is very active and responds well to need for advice and requests. But any required work on this forum has to be done my me, so there is no team of guys in leather jackets and big boots behind computer servers. However, we are doing ok so far, and I am hoping things will calm down in the next few weeks.
Thanks for the input from members, it has speeded up fixes and tweaks post going live on the new format. Before I arrived mid last year, Steve and Ron basically had nobody to do this sort of work, so we are in a much better space now.