WalletConnect not working with my custom evm chain

[idobino2]

Current Behavior

we have a Dapp with our own blockchain, chainId, rpc and tokens.
this Dapp is on a custom evm chain.
whenever we try to connect with scanning the qr code with WalletConnect - it doesnt work and we get the error
"Not supported: eip155:80998896642"

this is our code:
const onboard = Onboard({
apiKey: ${API_KEY},
theme: 'dark',
wallets: [/injected, trust,/ walletConnect],
chains: [
{
id: APP.state.get('80998896642').toString(16),
token: 'USDP',
label: 'PlayBlock',
rpcUrl: APP.state.get('eth_ws_web3auth')
}
],
//Don't display the account center
accountCenter: {
desktop: {
enabled: false,
position: 'bottomRight'
},
mobile: {
enabled: false,
position: 'topRight'
}
},
connect: {
showSidebar: false,
removeWhereIsMyWalletWarning: true,
autoConnectLastWallet: true
},
appMetadata: {
name: window.location.origin,
description: 'Play2Earn Crypto!'
},
notify: {
desktop: {
enabled: false,
},
mobile: {
enabled: false,
}
}
});

Expected Behavior

walletconnect is supposed to work and get us connected to our network and switch to the network's token

Steps To Reproduce

go to https://playblocks.upvsdown.com
click on "Connect Wallet" at the top of the page
click on the "WalletConnect" option in the login popup
scan the qr code - and thats it

What package is effected by this issue?

@web3-onboard/walletconnect

Is this a build or a runtime issue?

Runtime

Package Version

"@web3-onboard/core": "^2.21.2", "@web3-onboard/injected-wallets": "^2.10.10", "@web3-onboard/trust": "^2.0.4", "@web3-onboard/walletconnect": "^2.5.2",

Node Version

No response

What browsers are you seeing the problem on?

No response

Relevant log output

No response

Anything else?

No response

Sanity Check

• If this is a build issue, I have included my build config. If this is a runtime issue, I have included reproduction steps and/or a Minimal, Reproducible Example.