Unable to install addon, no error shown; v3.4 - 3.3

blender, installing an addon, I do not get any error, but yet after the installation, I cannot find it in the addon section, it happens time to time with different addons, this time around I was trying friendly pivot https://blendermarket.com/products/friendly-pivot , but I can’t install / use it, on 3.4 and 3.3 lts

I also tried to place the contenen folder of the addon (and with previous addons) under the blender foundation addons folder, but I got nothing

I would contact Roy if possible and see if it is still under development…looks like it hasn’t been updated since 2.8 though :confused: