Inter-contract calling part 2 does not give expected output

- **System Information**

- Firefox 95.0.1 (64-bit)
- Pop!_OS 21.10

- **The bug**

In the cryptocodeschool website the code is working fine. It's showing "good to go". But when I try to run the same code in SmartPy editor it's giving error. The problem must have occurred due to some update in the SmartPy library that hasn't been updated in the website ide.

- **To Reproduce**
Steps to reproduce the behavior:
1. Go to ['SmartPy IDE'](https://smartpy.io/ide)
2. Copy and Paste the completed code from Inter-contract calling part 2
3. Run the code
4. See error

- **Expected behavior**
After running the code it should be able to performs the tests properly. But it fails to call the contract.

- **Screenshots**

Start by opening the SmartPy IDE and reproducing the completed Inter-contract calling part 2 code, comparing its output with the cryptocodeschool website. Inspect the reported error in the linked screenshot and determine whether the lesson code or SmartPy library version causes the failed contract call; done means the code runs and performs its tests successfully.

Written by the indexing model from the issue text.