Unfortunately I didn't bet on Inter vs Fiorentina and I also didn't watch the match, what made the match stop, as far as I know even though one of the players fainted or was injured even though the position that had an accident in the Midfield section the match continued and those who gambled and risked their money continued.

I saw in the OP source that the game was stopped spontaneously, I don't know what was behind everything that happened, as far as I know, things like that rarely happen, usually the game continues with player replacement, In my opinion, if something like that happens, the only thing the gambling party can do is to do the same thing, the bet is canceled, the money wagered is returned to the balance, that may be an effective and responsible way for the casino towards the players, there is no other way than stop betting, because the match has been stopped.

For me, this situation doesn't matter. I'm sure they will stop betting on that club, as far as I know.