I'm working on a client's website using website auditor. It's showing 113 resources with 400 bad requests and all the links shown contain this query tag added to the urls: %PRIVACY_URL%.

https://www.cbradio.co.uk/%PRIVACY_URL% for example. I'm trying to figure out what's adding this privacy url query and creating page versions with that query but can't find the cause. I noticed their website is protected by reCaptcha, my inkling is it's some problem to do with that. Can these types of links be bad for seo? Anyone come across this kind of query tag before?