"Where is my next bottle?"
Translation:Gdzie jest moja następna butelka?
"mojo" is not a word
Please forget the 'word order is not important'. Forget it at all. Sure, it's more relaxed compared to many languages. But it's still important. Some sentences will simply be natural. However, different word orders will emphasize different things - the new, most important information will usually be at the end. Then, you will have word orders that are 'technically not wrong, but strange'. Mostly these will be things that sound as if they were taken from a song or a poem. And then you will have things that are just plain wrong.
Putting "mojo" aside, the problem in your sentence is that you put the adjective after the noun. In most cases, we don't do it. br0d4 explains it very well here: https://www.duolingo.com/comment/21465404