Hi @kadirhan I don't recall what error code 1 means, but the logs will likely provide more insight into the issue.
On Linux hosts, the logs are located in /var/log/dynatrace/oneagent and on Windows in %PROGRAMDATA%\dynatrace\oneagent\log.
If this is a Windows host, the Event logs might also provide more details.
In the event that the logs do not provide the answers, I suggest opening a support ticket.
You can try to run a check based on the output of /bin/ls --help. It is possible that this one particular host might have BusyBox tools installed instead of GNU. If that is not the case, then you should open a support ticket as was mentioned above.