I can explain what happened. But I fear that fixing it could be tough if you’re not wholly familiar with the mechanics of HTML (in the RapidWeaver environment).
A web page usually consists - at least these days, unless it’s remarkably simple - of multiple resources in addition to the basic HTML.
The (textual) content does consist of sentences, phrases, words, of course. But its formatting (how it displays, colour, font, size and breaks etc) is determined by external files which are part of a unifying system called Cascading Style Sheets. RW almost always builds and controls these Styles using a precisely-constructed hierarchy of external files which reside on the server alongside your text and images etc.
What you’re seeing on the page which you reference is a series of errors indicating that all these sub-files, these secondary resources - which are every bit as essential as the text itself embedded within the HTML pages, which you used RW 5.2.2 to build - are missing. Or are now in the wrong place. It’s almost certain that your ‘attempt to update’ the site caused this, regrettably.
If you performed this ‘update’ in a single action, one that you can remember, you may be able to reverse it and republish. If you have a backup of the RapidWeaver Project file which reflects the state of the site inside RW before you made the changes, you may also be able to retrieve that and publish it.
In either case, there’s a chance that reverting to how things were before you updated could result in a set of files which is publishable and which will allow the server on which you used to be able to see the site to display them again as you want to.
Without knowing which changes occurred during your update, it’s almost impossible to know how to guide you back in time. But do provide more details of what you did (and whether you have backups) and if we can help, we will! Good luck