Vape liquid doesn't work?

Ok so, I might be stupid.

I've recently made the switch to a refillable pod vape, later a 'Squonk' vape. Everything was fine, I used liquid from local shops n similar. I then ordered the LPV discovery from 'le Petit vapoteur', liquids labeled as 'Nicotine E-liquid'. Looking at the ingredients I was very sure these were not DIY and just flavours like the others I used, but they just don't work. I've set up everything as you should, right coils, etc. But the flavour barely produces vapour and it tastes extremely burnt.

By now I'm assuming those are still to be mixed with something? I couldn't find the answer on Google, or I'm blind. If anyone knows the answer or can just refer me to some video or something it would be greatly appreciated.