It is more than likely you are running PHP 8 on the server and have an older version of Armadillo, or you have an up to date version of Armadillo and are running an old version of PHP such as 7.3 or 7.4.
The latest version of Armadillo (that I have) is 2.9.12, update to that and then check your PHP version in your Cpanel of your hosting and upgrade to 8x.
I had the same slim errors in a post a few months ago and that was the issue.
@Konfuzzious
Even though the error message showed at the end of the setup it still seems to work, although I wonder if it being effected in some way.
Here’s the page where the blog is installed: https://highvoltageministry.co.uk/blog/
He’s been supporting this for over a decade, and this site isn’t in any way an official support forum for Nimblehost. I wouldn’t consider it a shame he hasn’t responded to you here; it would be a bonus if he does.
@Pixelart This must be something new under PHP 8.2 that I’ve not run into before. I’m not able to reproduce when setting up Armadillo for the first time under PHP 8.2, so it may take me some time to figure out what’s going on exactly.
FWIW, the slim errors I am receiving again were with PHP 8.1 (Armadillo 2.9.12).
This is Dreamhost. After a PHP release has been out for a period of time they eventually automatically update your domains. PHP 8.2 is available but is not yet “recommended” and I haven’t touched it yet.