10 answers to questions and then GPT 4 plus stops, gives error untill u wait 3 h more

I tried today to make read 1 one page with a single spreadsheed doc by Chat GPT to ask what he understood of the file, after a litle bit of questions like whats written , can you understand it etc, I interacted with Chat GPT for 10 questions after which it stopped answering and produced error which means I reached level CAP …
10 answers that were short, wrong and not on the focus point .

Is this how is intended to work now on ? pay 24 usd month for 10 questions and even mostly erroneous or is a bug ?

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