Xampp 3.2.1 error: MySQL shut down unexpectedly
Go to Xampp/mysql/bin/my.ini

open it and add the following line:

innodb_force_recovery = 1


Atleast this was what solved it for me.
I'd backup my .cnf file to be on the safe side.
After adding the single line you should be able to start your mySQL service again.

P.S. I think anything greater than 0 works, since the log error simply states > 0.