Database address problem?

[Ruinily]

I'm not very fluent in coding but I found a few things on google. It looks like its a common problem in urls, but I dont know which bit of coding I need to edit for the promo code urls, or urls linked from a page made on the website. Heres a couple of things I found...

"I've now reproduced the issue and can see what's happening. If you subsequently edit records (or change the structure) of a List that contains hyperlink columns, the original hyperlinks are recreated incorrectly and have the amp; added in at that stage. The bug is that each time you edit a record another amp; gets added. That's fine for text fields, but the & needs to be left alone for URL fields. This means a lot of wasted time as all original hyperlinks have to be manually corrected if the List is altered. Can this be fixed please?"

"Note that replacing & with &amp; is only done when writing the URL in HTML, where "&" is a special character (along with "<" and ">"). When writing the same URL in a plain text email message or in the location bar of your browser, you would use "&" and not "&amp;". With HTML, the browser translates "&amp;" to "&" so the Web server would only see "&" and not "&amp;" in the query string of the request."