Description

[Insert description of issue here]

Detailed Information

Is available here
.

You need to give one group a setting of "default: true". This is for the group into which all users are placed when they first join the server. Then the error you're receiving will stop. :-)

Example:

/pex group <group> set <option> <value>
/pex group Gracz set default true

How to do it?

I've already done this and still is:
groups:
Gracz:
permissions:
- essentials.tpa
- essentials.warp
- essentials.warp.list
- essentials.warps.sklep
- essentials.warps.bunnge
- essentials.warps.craft
- essentials.warps.Enchant
- essentials.warps.mieso
- essentials.warps.balon
- essentials.warps.klata
- essentials.warps.*
- essentials.spawn
- essentials.home
- essentials.sethome
- essentials.kits.drewno
- essentials.kits.start
- funnyguilds.player
- essentials.home
- essentials.helpop
- essentials.spawn
- essentials.msg
- essentials.tpdeny
- essentials.kit
- essentials.tpaccept
- drop_old.stone
- karolekdrop.executors.stone
- karolekdrop.diament
- buffshop.cmd
options:
default: 'true'

When you start the server, copy all of the text printed on the server console and paste it on Pastebin. Leave the link created by Pastebin in this thread.

https://pastebin.com/g1ByGchX

I don't want to see the error, I want to see the entire server console log.

https://pastebin.com/bSNLBmJp

[20:20:59] [Server thread/WARN]: **** SERVER IS RUNNING IN OFFLINE/INSECURE MODE!

PermissionsEx will never function correctly in offline mode unless you're running a Bungeecord server network. (And you don't have Bungeecord installed on your server.)

You will need to change the server.properties file setting online-mode=false to online-mode=true.

Already

Jeśli nie zmienisz tego ustawienia w pliku, PermissionsEx nigdy nie będzie działał na twoim serwerze. Jeśli nie zmienisz tego i kłamiesz, że zmieniłeś to, mimo że to co robimy, aplikacje PermissionsEx nadal nie działają na twoim serwerze.

I did, but now I can not get on the server because it says: Access: token can not be null or empty.

http://www.minecraftforum.net/forums/support/server-support/1886258-access-token-cannot-be-null-or-empty

Seems like you need to reinstall Minecraft or migrate your account to the new system.

That's not a PEX issue though, sorry.

It's online mode

The token error can only be fixed by uninstalling Minecraft and reinstalling it, or by logging into the Minecraft website and going through their migrate process. I can't do anything about that here.

After you get your Minecraft client fixed, feel free to come back if you need additional help with PermissionsEx. :-)