pobierajc
The term "pobierajc" appears to be a fragment or misspelling. In Polish, "pobrać" means "to download," and "pobierać" is its imperfective form, meaning "to be downloading" or "to download (repeatedly/habitually)." The "c" at the end does not form a standard Polish word or grammatical structure when appended directly to this verb.
It's possible that "pobierajc" is a typo for "pobieraj" which is the imperative form of the verb