Pagination 404 error on any web page instead of web page 1 for classes

Hi there All! Having hassle working out this pagination factor on one in every of our web page.

Our web page (HVAC) has a class known as Air Duct which has 28 posts tied to it.

The URL of the class web page which lists out the posts within the class is at >

**instance.com/class/air-ducts/**

Once we click on “**older posts**” and it is going to web page 2, it ends up in a 404 no longer discovered error. This is occurring to the entire classes pages.

The hyperlink it is going to once we click on web page 2 is >

**instance.com/class/air-ducts/web page/2/**

Our permalinks for this web page are set to the standard Submit title which will also be noticed right here >

[https://postimg.cc/PNFHzLMx](https://postimg.cc/PNFHzLMx)

Is there any surroundings I wish to alternate someplace to ensure that us to view different pages on a class web page?

Thank you for any enter into this!

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