Bug 

I didn't encounter any bug,
Task was quite difficult to navigate for me as I couldn't stake (kept redirecting me to a doc). Partly due to no guide/steps.

However I bought oap, short and longed BNB.
No dark mode option on user interface also.
UI/UX is simple and user friendly.

0x4F8C88C853dF5d0c21527287D0218acA91e49984