Request could not be completed

Hello, im trying to use exportpdf on adobe cloud (paid). I Have about 1200 pdf files that needs to be converted to docx. I realized that it's not possible to convert all of them at once because of performance issues of website. So i devided theese files into chunks of about 60files each. When I try to convert theese 60 files at once it says Could not complete your request.err occured whilte trying to completeyour request and it could not be completed. Now even when I try to convert one file I get same err. Please HELP 🙂