Did you purchase an Unlimited Returns license or a Pay Per Return license when you bought ProSeries? 

If its asking you to pay when you try to print, sounds like youre on a Pay Per Return license.  If you think this is wrong, try using TOOLS > License Products and see if that pulls in your proper licensing info.

(This has nothing to do with ESignature)

Sorry, I just noticed that youre on ProConnect tax Online, my instructions were for ProSeries, sorry!

PTO you need to pay a REP fee for each return (I think thats what its called) before you can print or Efile, but I dont know how it works