Thank you for your advice @anggreklestari! 👍
Yes, I had that last pic saved since a long time in my laptop and used it as I just had no photo with cassava slices available. I don't know where it is from anymore so I deleted it from my post now.
I just talked to @jaki01, and he explained me again how important it is never to use pics from other sites without to provide the source in Hive!
So: sorry for this mistake! I will be more careful again from now on! Anyway, this is the only photo in all my posts which wasn't my own work.