Invisable prim that is not there?

I have a huge problem at my Prefab home place. One of my vendors is blocked by a huge invisable prim or something, but its not there!! I have tryed at every angle to highlight it to remove or return it, but nothing is there, yet its like your walking into a big prim. You can even walk on top of it...lol
Does anyone know what this could be and how I get rid of it, because its right in front of my house rezzing vendor.

Look at your Parcel Menu (right-click --> about land) then go to objects tab.

If there's prims that show as "Selected/Sat upon" then you may want to put a ticket in for a region restart.

I had this with a plate of sushi recently ..after days of trying to find it..delete it . a Region restart got rid of it ...nothing else worked

Get the sim restarted, the prim wont go away unless.

Ok how do I restart my sim? Thanks

Are you on mainland -- if so put in a ticket via the support portal.

If you're on an Island, your best bet is to contact the estate owner.

Ok thanks a bunch I will do that

i just heard about this today a friend of mine had that to, she just could not enter her house because there was a prim in front of it but we could not see it

There called ghost prims, prims who should have been deleted by you or someone who owned perhaps the land befor your but did not leave the sim due to a error.

resetting sim should fix it or if you own mainland and not a sim, wait for region restarts or file a ticket