SFTP connection payment output (xlm)

Hi all, 

I try to generate an external payment file (XML) when i do a customer/supplier payment proposal. 

I have set routing adresses : 

I have set a routing rules : 

I have follow all step that is mention in the procedure : 

IFS Connect for Payment Files creation in Background - Technical Documentation For IFS Cloud

But when i create my customer/supplier payment proposal and i valide and genreate the payment i have no file which is create on my SFTP serveur.

Then i have an error message : 

Do you have any idea about what’s wrong? 

Thanks in advance for your help! 

Best Regards, 

Jérémy