1) Make sure that you selected server 2 and 3 to be a mirror of server 1 in the ispconfig server settings if you want that records get mirrored to the other servers in the cluster automatically.
2) ou added incomplete zones for arenahosting.org and dtxigaming.com. Both zones have no NS records. To fix this, add NS records for these zones. I recommend that you use the dns wizard the next time when you create zones as the wizard creates all nescessary records for a zone automatically.