"unexpected end of JSON input"

[tristanryerparke]

When trying to use any command, I get this error.
Here is -debug output:

tristanryerparke$ ./rfm ls -domain 10.0.0.1 -debug 0:/
2020/11/05 21:52:49 Doing GET request to http://10.0.0.1:80/rr_connect?password=reprap&time=2020-11-05T21%3A52%3A49
2020/11/05 21:52:49 GET /rr_connect?password=reprap&time=2020-11-05T21%3A52%3A49 HTTP/1.1
Host: 10.0.0.1:80
User-Agent: Go-http-client/1.1
Accept-Encoding: gzip


2020/11/05 21:52:49 Received response
2020/11/05 21:52:49 Doing GET request to http://10.0.0.1:80/rr_filelist?dir=0%3A
2020/11/05 21:52:49 GET /rr_filelist?dir=0%3A HTTP/1.1
Host: 10.0.0.1:80
User-Agent: Go-http-client/1.1
Accept-Encoding: gzip


2020/11/05 21:52:49 Received response
2020/11/05 21:52:49 unexpected end of JSON input

Using duet with raspberry pi 4 on access point mode. RRF 3.1.1 DSF 3.1.1
Is this setup supported?
Cheers