Feed update problem (Ubuntu 20.04.4 LTS + GSA 21.4.3)

Hello, professionals!

My case is the following
-Ubuntu 20.04.4 LTS (GNU / Linux 5.4.0-104-generic x86_64)
-Greenbone Security Assistant Version 21.4.3

After restarting the host with greenbone in the web management interface on the Feed Status tab, the status has not changed for more than a month and is in the state of Update in progress …

Manually running any of the upgrade commands leads to the following message:
"Greenbone community feed server - http :// feed. community. greenbone. net/
This service is hosted by Greenbone Networks - http://www. greenbone. net/
All transactions are logged.
If you have any questions, please use the Greenbone community portal.
See https://community.greenbone.net for details.
By using this service you agree to our terms and conditions.
Only one sync per time, otherwise the source ip will be temporarily blocked.
receiving incremental file list
13 100% 12.70kB/s 0:00:00 (xfr#1, to-chk=0/1)
sent 43 bytes received 113 bytes 312.00 bytes/sec
total size is 13 speedup is 0.08

The manual automatic update task (cron) was removed, but this did not have the expected effect.

Since I am a beginner in Linux, I would be grateful for any help in this matter.

status updated at this time. is this a relevant feed?