Getting an error when running the AA node.js quick start demo

I am getting the following error running the sample from here:

the wallet account, as well as the EOA being used, both have token balances.
maybe the paymaster is out of the token? Or what would be the step to troubleshoot this?

Thanks

error received {
code: -32508,
message: ‘Transaction reverted in simulation with reason: userOp execution failed. Use handleOpsCallData to simulate transaction to check transaction execution steps’
}