[Fork] adding new chain

[avenbreaks]

Describe the solution you'd like
hello I tried fork uniswap interface and tried to add some new chains to add to the uniswap interface but after I tried there was an error in the tokenlist that didn't show up and changing to another network caused the network not to stay on ethereum

Describe alternatives you've considered
I compared with pr matic or celo still getting this error. can you tell me which part should i change?