No tests have run error appears always in stages 3 and 5 of A/B Tests for Delivery App project using hs-test-python-11.0.0, Python 3.9 and PyCharm 2024.2.5 (Community Edition) Build #PC-242.24807.21. However, tests for stages 1, 2, and 4 that do not include plots run smoothly. Attempts with previous releases of the package (7, 7.0.1, 8, 9, 10) also fail to work on stages 3 and 5.