ReceiveFax problem - disconnected after permitted retries


I’m using Asterisk 13 with pjsip and res_fax_spandsp.
Currently I try to receive a fax using the ReceiveFax appliaction. For now I want to save the fax in a *.tif file.
But everytime I send a fax (from a working hardware fax) to my asterisk system ReceiveFax is called and at first it seems that some data is received.
After that I check the variable FAXSTATUS that is FAILED and varaible FAXERROR that says “Disconnected after permitted retries”.

Here the important part of my dialplan

and here important part of CLI output

A tif file has never been created, the folder exists.

Really have no idea what I’m missing.