https://drive.google.com/file/d/1Q_LZ_9FAKzD_MFKD_eHCxlix5a5I_kEb/view?usp=drive_link
Hi Sana RRoxie ,
You have your Pivot Point set to Individual Origins, at the same time you are using Face Selection Mode:
There were no Faces to begin with, when you Added the Circle...and then, to be extra sure, you Deleted the Faces (which did nothing, of course).
So now you try to Rotate/Scale around the Individual Origins of Faces, that aren't there...
This is definitely not the best explanation I've ever given, but I hope it still helps.