Polygone transfer not showing


Hi! I have two issues please:
1- i bought polygne with eth but metamask is not showing them even thought transaction on etherscan was successful.
Here is transaction :
0x4a98dfdaa63c1960453d38ad9b6e9d39421e4c223005ce3b106a08b508d2d971

I have entered the matic mainmet network with the below settings isnโ€™t this the right one?

2-i tried to buy an NFT on opensea and got th


following error .

Hope you can help asap!:pray::pray:

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