Error after a few minutes of running

[Gribouillis]

As @micseydel said, we know too little to give a valuable help.

From the traceback, we can see that the error occured during the call of a function named find_element_by_css_selector(). Again I cannot imagine such a function involving a high level of recursion without an error in the logic of the program. Typically, a function with that name will traverse a document's tree which depth is small.