How to print form labels

I have generated a label with a connection to a database, now I would like to print it:

When I select print it says “Your document contains address database fields. Do you want to print a form letter?”, I fill out the fields put neither printing, nor saving to file, nor producing any sort of error message that would indicate how to progress happens.

Please let me know how I can print form labels.

Libreoffice 4.2.8.2 on Ubuntu 14.04