When I want to send a draft that I saved, I get this error

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1

Cuando quiero enviar un borrador que guarde, me da este error:

Attempt to invoke interface method ‘int java.util.List.size()’ on a null object reference

2

Welcome to the community, @hugo.vargas! Could you kindly share with us a screenshot of your issue so that we could understand it pictorially?

3

Did you check your form with the (famous) Online validator, please? (Always recommended during development and before deployment of a form.)