Unit tests are failing.

[Chizitere01]

In lesson 9 of the course, 5 out of the 14 unit tests are failing. The staging tests are working fine.
here are the errors I get

VM Exception while processing transaction: reverted with custom error 'InvalidConsumer()'

 Error: invalid arrayify value (argument="value", value={}, code=INVALID_ARGUMENT, version=bytes/5.7.0)

 Error: Timeout of 300000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. (/home/chizitere01/hh-fcc/hardhat-smartcontract-lottery-fcc/test/unit/Raffle.test.js)

here is the link to my repo https://github.com/Chizitere01/Hardhat-SmartContract-Lottery-fcc/