Illegal in UK but moved to Poland with Polish wife help for residence card

What means by copper and incident?
Just worry that what to do
Scary to go office
Spoke with some adwokats some say it possible but some say it never possible
I really confuse now so much

copper = police

incident = criminal record

if you can't work then find some sort of volunteer work to be doing as evidence of your integration

And integration mean?
Yes I can't work yet
Just searching for adwokats and spoke with many different adwokats
Some saying it possible and some saying it will never possible

You speak Polish as much as possible and know how things are done in Poland and prioritize fitting into Polish society over other concerns

Yes I will