I have quite a bit of experience with Python and web-based scripting and automation. I haven't heard of Pyppeteer before, but took a look and it seems like a Python wrapper for a Chromium instance. I've worked with a Python-based REST API wrapper before, and I understood the gist of what it's doing. I can take a look at what your code is doing and see why it's going wrong. If the problem is unclear on an initial look-over, I may need to take a bit of time looking through the docs, but shouldn't take more than a few hours.