Ah yes, the infamous Serbo-Croatian. Don't know why they still use this hybrid :D
Had you picked either one it would have shown you the most commonly used phrase only, but that's not your place to find out really. The one you were shown is written as an infinitive of the verb and that isn't used as a response, the present form is.

I thank you for the effort, found out about glosbe because of you. I usually use Google Translate :D