rDNS 'zone [xxx] has no address record (A or AAAA)

Your pro.lan zone specifies a nameserver of server.pro.lan, but does not define that record. You need to add a server IN A record pointing at its IP address.

Additionally, your pro.lan zone is what is known as a "forward" zone - it maps names to IP addresses, not numbers to names. PTR records are used to map numbers to names, and therefore PTR records are functionally useless in this zone. I recommend picking up a book on DNS and reviewing the fundamentals.

Also, please review this question before you decide to start doing anything with DNS in your production environment: Should we host our own nameservers?