it's quite simple, you go to the vrchat cache files, you open the folder of the element you wish to recover (the folder will be created when you have completely loaded the desired element, so note carefully the moment when this was the case to have an indication of when you will have to recover it), you copy the data file and put it aside for later, you then open the folder where asset ripper is installed and you just drag the data file on top, asset ripper will open automatically, it will open for you you will recover the desired element and create a folder just below the application, all you have to do is rename the folder ^^
ps: some elements cannot be recovered because they will be protected, for the others, they will be broken, you will have to repair it yourself or find someone who can do it @blasteblade