Help! More listings are not working from 1st page to 2nd page

Hi,

I have updated Osclass version 3.8.0 to 4.4.0 Latest version in Cpanel. I am using the Marketplace theme. More listings are not working from 1st page to 2nd page.

When we click the 2nd or 3rd page, it is staying on the first page only.

sample area

Can you please help us to rectify this issue?

Please note: Theme developer is not supported for my query.

Thanks,
san-r