@SaTechyv ,
I just tried the same command it went through successfully , which seems similar to your command.
Can you try out couple of commands mentioned at https://learn.microsoft.com/en-us/azure/storage/common/storage-ref-azcopy-copy ?
Start with copying a single file ...
Also check the version of azcopy.
Try with azcopy.exe (type whole executable name)
Try to re-install the latest version (Myne is 10.6.0)