This sounds like a quote, a riddle or a botched Slovak/Czech translation (so-called “machine translation” or a joke from the internet).

The sentence contains several typical signs of unnatural text:

“It’s not for me” vs. “I don’t know either…” – a jump between personal expression and strange statistics.
“It’s not for me” is often a literal translation in English of “It’s not for me” (I don’t like it / It’s not my style / I don’t care about it).
“People” – a Czech expression mixed into Slovak (in Slovak, people).

“Nine percent” – an unusually specific number that in such a context often comes across as random generated text, a meme, or a statement taken out of context (e.g. “99% of people can’t handle it” / “only 9% of people know the answer”).

If it’s a specific error code, virus, page, or meme, you can send the exact text, screenshot, or URL so we can figure out what it’s really about.