The DRC refilles all zones everytime I Run DRC and it doesnt make any difference. It should be connected to GND pour.
Otherwise U3p1 and others shouldnt either.
Does it look connected with the pour? Are you using "thermals." If so, that's a sure way to check. Can you check the properties of that pad? Also, but probably not in this case, some devices have multiple ground pads that don't all need to be connected. That can also give that error.
Can you snip a picture of that section with the pour?
My theory is that some of the fill areas (apparently just 2) are not connected to each other or to the main fill. Sometimes referred to as "islands" or "orphans." They may fill, as they are still "GND," but the error indicates two airwires present.
Cross posted. One solution to islands is to decrease "separation" (may be called clearance too) or width of the routing used for the pour polygon. The polygon for a pour is filled by lots of thin tracks. You can't see them, but if you make them to narrow (e.g., 0 width) your board house will probably complain. What setting in KiCad controls that and what do you have it set to?