on start up i get a error screen 'unable to create d3d11 device ?

Yush, i like to ask couple questions about the game: 1. Are there AI fishers in the lake? 2. Are there any AI competions againts AI that was visible on the lake when competions is on? 3. Can you custom your fishers looks? 4. Multiprofile support? 5. Steam cloudy save?...