Hello @sumayyah,

That image does look odd, and I am not sure what to tell you about it.  I would suggest a standard type of burger bun like a pan bread process with at least 4 hour sponge, and in ratio to:
100 parts flour
10 parts fat
10 parts sugar
4 parts fresh yeast
2 parts salt
2 parts milk powder
55-60 parts water – depending on your flour

On my YouTube channel TheMrPastry you can find a video on making white bread – same process only use these ratios and make buns.  https://youtu.be/C1TvuxyItmY

Hope this helps.