OpenVAS setup rsync stops

I am facing same issue

nvdcve-2.0-2017.xml
15,269,888 11% 926.30kB/s 0:02:05

last 3 days nvdcve file not sysnc
stop when nvdcve size reached at 11%
kindly help

I am using centos 7
RAM 4GB
Swap 4GB