What does olpers means?

"Olpers" is a brand name, specifically for a type of flour and bread produced by the German company Dr. Oetker.

It's not a word with a general meaning in the English language.

The "Olpers" brand name is derived from the name of the founder of Dr. Oetker, August Oetker. He named his company after his wife, Ida Oetker, who had the maiden name "Olpers".