After installing free Ajax filter, filtering stopped working good [SOLVED]

Hi, i installed Ajax filter from opencart market Ajax Filter 2.1.12 https://www.opencart.com/index.php?rout ... _license=0
At first it worked like charm, but it started not to work on some product categories.
Now i tried to bring back original opencart filter but it doesn't work now. Tried to contact theyr support but they could only check it with some payment.
Where should i check in the code to solve the problem, or how to cleanly remove Ajax Filter, tried to remove it from extension > installer but after that web crashes and i had to reinstall it.
This is product category where filter works: https://e-gilius.com/index.php?route=pr ... 001-1500-w
And this is where it doesn't work: https://e-gilius.com/index.php?route=pr ... th=115_119

I will appreciate all help

Hi,
Found solution, had to recreate the cache in filter settings.

Then you can edit and add [Solved]