Firstly, please make sure that your address is not yet created by inserting some information in the Address Book:
Easy4Pro address system is based on Google Maps. If the address is not recognized on Google maps, the chances are that on Easy4Pro it will face issues as well.
To make sure that the address is well recognized, try to add the information as clearly as possible, with a complete postal code and accurate city name and without special characters.
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If the error persists, open a ticket to Support and we will manually force the address for you.