short answer: no, atm at least o.o
if your friend is going to login again this won't solve your issue, but you can remove the file and login again on each mule to recreate it or, slightly "harder" (if you mess it, it will be gone), delete your friend's block from findall data (data/storages.json):
Code
,"Charactername":{alotofnumbers}}
so a comma, followed by the double quoted character name, colon, an opening bracket, a lot of numbers, 2 closing brackets.
and ty for the amazing xD too kind