error in ctop "could not unmarshal the response! EOF"

[Kalim-Qureshi]

Hello Team,

i have installed CTOP on ubuntu 14.04, from the released debian package ctop_1.3_amd64.deb.
In the logs i can see below error for all the metrics
Info: Getting metrics:LiveDiskSpaceUsed
debug: Got http resonse code (200)
Error: could not unmarshal the response! EOF

Seems there is code issue, Can you please resolve this.

[grsmv]

Cassandra version used is 3.7