Hey, i got a Server and me and my friend try to break blocks but after we break them we doesnt get loot, i try already /gamerule doTileDrops true but it doesnt work too..
i delete all plugins and its the same doesnt work.

I need really help.    

Edit: here with F3 Show   https://gyazo.com/4764a7f64d1baed73a072847abd0514f