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I'm getting this error when I try to run my Brownie Python script:

myAwesomeGasLimit = 200000
def enter_for_free():
    account = get_account()
    lottery = Lottery[-1]
    tx = lottery.claimFreeEntry(
        '0xD3311541C02595112db0e43F241e198E86079349',
        {"from" : account, "gasLimit" : myAwesomeGasLimit}
        )
    tx.wait(1)
    print("You successfully entered for free")

And here is the function from the solidity smart contract:

function claimFreeEntry(address _erc721_contract) public {
        require(IERC721(msg.sender).balanceOf(_erc721_contract) > 0, "You are not eligible to play for free");
        players.push(msg.sender);
    }

As you can see there is not much going on, nevertheless I haven't been able to solve it for one hour now. Does anyone know what is wrong?

Exact Error: ValueError: Gas estimation failed: 'execution reverted'. This transaction will likely revert. If you wish to broadcast, you must set the gas limit manually.

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