Auto input data from different database

I have 2 databases, ome for an organization members and other for register in events.
What can I do so that when en
tering the field “licencia” (members database) the others are filled automatically (members database) and this data must be upload to other database (events register)

https://www.vorbly.com/Vorbly-Code/WIX-CODE-AUTO-FILL-FORM-WITH-USER-INPUTS