r/RiichiCityMahjong

Why wasn't I able to Ron the discard?
I know I was in Furiten because of the seven I discarded but that shouldn't matter for the four?
And my hand should be a valid one since pure straight is a yaku which can be used with an open hand.

Never seen a shine hand, how much would get?

(Some online calculators showed 32 han, dont know if its right)