You need to remove the surrounds and sub from the Beam before you can add them to the Arc.

https://support.sonos.com/en-us/article/remove-surround-speakers

https://support.sonos.com/en-us/article/remove-a-sonos-sub

Thank you it helped but now i have like 3 rooms and i can't delete one or connect all products to one room. I have Arc and sub mini in one room and surrounds one by one in other rooms. 

If i tap on connect surrounds to living room there is always some problem that is not possible to connect asking me if surrounds are powered on or if it has a wifi signal. All is good i checked. 

You’ve gotten the first step, now you need to go into the Arc room and add surrounds to the Arc:

https://support.sonos.com/en-us/article/add-surround-speakers-to-a-sonos-home-theater

Hello sir now i have another problem I changed the beam back just to try it again and compare. How i put the arc back i connected everything but surrounds and sub mini are not working. There was a green light on Arc and surrounds i've seen it's like muted.

But when i pushed the button on One SL green lights dissapeared but still not working. 

I don' know what to do.