I have just had another look and their are too many issues for me to mention but the site is saveable. Wix will have loads of YT video tutorials so you could get some info from these.
You will notice that the footer on a few pages is not at the bottom of the page. This can be fixed by adding more text. If you were to add more text on the home page between the image slider and the footer then the footer should drop down to the foot of the page as it should. You get this problem with the MoonFruit website design platform and Wix will be very similar.
The title headings, desriptions are all a mess. There are validation errors. There is no Twitter page linked to your site. It's not optimised for mobile. I'm struggling to find incoming links but it's a fairly new site. The average words per page is borderline and the homepage needs a lot more text. The site has a load of code issues but that's more likely an issue with the Wix platform so not much you can do about that. The text is showing as an image and not text which is worrying! There are virtually no relevent heading tags ect. I could go on all day
I mentioned that it's not a responsive site in my previous post and Wix like many of these types of companies will probably not support responsive websites so the re-sizing issue you have will be hard to change. I have noticed it's mainly the header and footer that's affected by this so you could redesign it slightly and have a bleed line around your header and footer and bring the text further in so it doesn't cut get cut off on some PC monitors.
The amount of likes and positive Facebook reviews is brilliant so that's something to build on.
I would do some research on Wix and you will soon become an expert at it. Like I said, their will be loads of info and videos about Wix.
I also own a website design company and although I mainly use wordpress, css ect now I do have previous experience with platforms similar to Wix in the past so if you need any free advice then call me on 07969072578. Thanks Dave.