Minecraft – I can’t pick stuff up in PocketMine Realms

The best thing to do for a private server, is to op everyone so that all of them have admin abilities and none of them will have troubles with permissions.

To op a person on the console:

op <user>

To op a person in-game:

/op <user>

The reason there is a slash in front of all commands in-game is so that Minecraft will know if you want to say something or use a commands. If you are still having trouble, make sure that in the settings, the gamemode is set to 0.

0 = Survival - You have to find blocks and you have a health bar.
1 = Creative - Has the ability to magically make blocks and fly.
2 = Adventure - Like survival but you can not break or place blocks.

Of course there is no way to know 100% that your save game is not corrupted after modifying a savegame, but I have had multiple Estus after modding my save multiple times and never have had a problem with it.

It is to note that the game considers different Estus to be different items from one another. When you upgrade your estus, your +1 estus gets deleted and it loads a +2 estus in its place. This explains how it is possible to have two at the same time.