Fatal error: Call to undefined function JRegistry() VM categories view.html.php

[Studio 42]

Max, the logic was changed from one to other release, some value was set another way before.
I needed myself some adjustment for customers but i don't checked why, where and who this changed.
I see that a user have similar problem, so i said him to compare. What is bad here ?
You're just paranoid.
If you have an exact solution, fell free to explain it, because in my case, i have always to modify overides. Sometime because code changes for paiement /shipment render in product, sometime on render in cart  view price or customfield, sometime the addtocart ...
So What i say next time? Nothing changed you simply dream it?