Thank you, creators, for that amazing box, I really learned a lot.
For me the main problem was with the right commands, you might know the logic of how it should work, but something will go wrong and a solution always be something that you never expected to be.
For user: Please please double-check for commands, if you feel its right and it doesn’t give you output please check for NULL (Even if it doesn’t make sense for you, try to find what can be null in manual)
for root: @MrPennybag above described pretty well!
Also, I really want to say a huge thank you guys @acidbat @Chantal2019 @GibParadox @jpredo @n4v1n for giving me nudges
and others