SCP/SFTP File upload fail

Hi,

we are using the NCM and with it the SCP/SFTP (v2.2.0.110) as a service. But there is an issue with uploading files through SFTP.

Logs:

2021-03-18 10:00:03,320 [7] INFO  SolarWinds.Sftp.Service.Listener - FileUploadFail Unknown File upload rejected; user nms from IP xxxxx

Has anyone the same issue? 

Thanks