Renamed a folder on an external hard drive and the folder was gone the next time the hard drive was inserted
I recently renamed a folder (contaning videos about 30Gb in total) on an external hard drive. I had acces to the folder after the rename and pressed clean up by name, still had acces to the folder though. I afterwards ejected the hard drive and plugged it into my PC and the folder was missing. Plugged the external hard drive back into the mac and the folder was gone. How can I find the folder again?
MacBook Air, macOS Sierra (10.12.6)