Server Data Formatter error on $_POST var

Win 10
PHP
W 4.4.4

+++ NOTE THIS IS A OLDER SITE IM UPDATING +++
The login still works on the front-ends and everything is still secure…
Is sha512 still a thing? Can i still use this?

Anyway was its a older site and don’t want to redo all the logins.

Then if you click on the magic wand.

exe-error893×299 50.2 KB