Could not write to transfer socket: EPIPE - Local endpoint has been closed - Filezilla

Hello everyone, I describe my problem: I've been using Filezilla for several years on my Mac Pro with no problems but some days ago I'm getting an error messages and I can't upload any images or videos on AdobeStock servers. This is the error message:

"Could not write to transfer socket: EPIPE - Local endpoint has been closed"

I'm able to transfer just one file everytime I login to my AdobeStock account, the second file crashes after 0.5-2 % of uploading.

The Firewall on my Mac is OFF

With other ftp servers I have no such problems

Do you have any ideas?

Thanks