adress import: error notification

[codes2go]

Hello everyone,

(I added an picture of the notification)

I'm a prestashop beginner and did quite well so far, but at the moment I'm having problems with the data import of adresses. I just want to import an adress file but when I choose "import" after  the successfull assignment of my data columns with the presta variables, I'm receiving an error notification, that I can't handle.

Does anyone have any idea of what I did wrong? Do I need to create customers first before I import some adresses? (In this case the data is about adresses of possible suppliers, so I didn't create any customer set).

I would be really relieved if someone could help me.

Thank you!

 

Edited June 3, 2019 by codes2go (see edit history)