Scan/24 "web Service temporarily down "

GVM versions

gsa: (‘gsad --version’)
Greenbone Security Assistant 8.0.0
gvm: (‘gvmd --version’)
Greenbone Vulnerability Manager 8.0.0
openvas-scanner: (‘openvassd --version’)
OpenVAS Scanner 6.0.0


Operating system:
CentOS Linux release 7.7.1908 (Core)
Kernel: (‘uname -a’)
Linux SOCA1APPS13 3.10.0-1062.4.1.el7.x86_64 #1 SMP Fri Oct 18 17:15:30 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Installation method / source:

wget | sh
yum install gvm

I had a scan, status stopped at 1%, after restart according to"web Service temporarily down"
openvassd.log is pulled up to the position
The following is a screenshot and openvassd.log