@Andres-F-1
I suggest to post your question in the community for Spanish language : Community Español
Google translates:
"Hello, I currently have the RNT national tourism registry and I have been receiving emails from FONTUR to pay parafiscal contributions for the first and second quarters of this year, I tried to make the settlement in Home | FONTUR but the platform requests for this to register the establishment with the date of registration, I do not have this information because I understand the commercial register is not required and the RNT is enough."