Duik

Hi,
I have no idea why Duik is crashing my after effects.. I´m trying everething.....
When is installed, all the layers stay mess up, masks cut in the wrong place and don´t work to subbtract element, RIG´s hierarchy keeps messing and in minutes all the program crash.. 
I don´t know what to do anymore.

Also, I don´t understand why when I install After 2018 alreary install the 2021 even when I don´t upgrade.

Please, help me .