You have delegated DKIM records to another service:
theadvisors.org. 3600 IN NS matt.ns.cloudflare.com.
theadvisors.org. 3600 IN NS melinda.ns.cloudflare.com.
;; Received 113 bytes from 199.249.120.1#53(b2.org.afilias-nst.org) in 8 ms
_domainkey.theadvisors.org. 300 IN NS ns.vali.email.
;; Received 82 bytes from 2606:4700:50::adf5:3ac6#53(melinda.ns.cloudflare.com) in 8 ms
You need to add the DKIM record for Hubspot with Vali or delete the NS record.