Allow CRL File traffic in Palo Alto custom application

I am an intern in a company. One my tasks is to revise the palo alto firewall rules. All CRL traffic falls into a blocked category. I can add all CRL's in the allow list but this is not a good solution because there are a whole bunch and is not that practical. I have copied a custom application from the forums but it still doesn't work. Any idea's?

Custom app: https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000ClUBCA0