Osp_scanner_feed_version: failed to connect to /var/run/ospd/ospd-openvas.sock

Dear Team ,
I have installed openvas on Centos 8 stream. I am able to login to GSAD, but when I try to scan, I get the error Failed to find config ‘daba56c8-73ec-11df-a475-002264764cea’ and when I check the log it shows
osp_scanner_feed_version: failed to connect to /var/run/ospd/ospd-openvas.sock . What might be the reason. Please help me with a solution. Also I need to know how to restart openvas.