Redirect/SEO Issue (404 and 301 Error)

I am a beginner and stuck in a problem I cannot find a solution for.

I embedded a third-party app using the plug-in named “Head & Footer Code”. The script tag contains the URL for the app and API Key. I came to know of an issue through my SEO audit app that an incorrect URL is being generated which gives a 404. The URL goes something like:

https://example.com/blog/category/uncategorized/%E2%80%9Chttps:/opps-widget.third-party-app.com/third-party.js?clientld=<string>9%E2%80%9D

Some of my many blog posts got added in the “Uncategorized” category. I have now bulk edited those and removed them from this category.

My site uses Genesis but I cannot find any instance of the third-party app anywhere in functions.php. I have even set up a redirect link from the incorrect URL to the actual blog page but to that, the clientId keeps getting appended. It looks something like:

https://example.com/blog?=clientld=<string>

I don’t understand why the incorrect URL is being hit and what the origin of it is.

This is affecting SEO, is there any fix I can implement? Note that I do not have access to .htaccess or the phpMyAdmin database credentials.

Any help is appreciated. Thank you in advance!

 

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