I would recommend learning how to follow a stack trace such that you can see the line where something fails. All your screenshots showing only your code indicate you may not be doing so and thus have less of an opportunity to grok the internals and learn why something is happening. I use VSCode more than Pycharm but it appears you could just click the text link in the stacktrace to the line of code to understand the issue. Looking at the code where the stacktrace link would have sent you, it seems you don't have

is_timestamp_replication_key

set to/evaluating to

True