Caused by: org.bukkit.configuration.InvalidConfigurationException: while parsing a block mapping
 in 'string', line 1, column 1:
    groups: {}
    ^
expected <block end>, but found BlockMappingStart
 in 'string', line 2, column 3:
      ninja:
      ^

Caused by: org.yaml.snakeyaml.parser.ParserException: while parsing a block mapping
 in 'string', line 1, column 1:
    groups: {}
    ^
expected <block end>, but found BlockMappingStart
 in 'string', line 2, column 3:
      ninja:
      ^

] Edit by Stormbow: highlighted the actual errors. [

Your permissions.yml file contains errors. Pastebin that for me and I can tell you specifically how to fix it.

https://pastebin.com/yJiQKP2F

Line 1: remove the curly braces. { and }

Make sure all of your indentation and formatting matches the example.

next

Next, show me your corrected permissions.yml file.

groups:
ninja:
options:
prefix:'&0[ninja&0] &r '
permitions:
- essentals.kit.ninja
PvP:
options:
prefix:' [pvp]
permitions:
- essentals.kit.PvP
tank:
options:
prefix: ' &1[TANK&1] &r '
permitions:
- essentals.kit.TANK
phoenix:
options:
prefix:'&6[phoenix&6] &r '
permitions:
- essentals.kit.phoenix
schema-version: 1
users:
0be58318-b94a-4530-a35e-a1639af3f954:
group:
- owner
options:
name: Tamed_taco_pap
group: tank

ITS NOT LONG

The indentation of your file is still wrong and you spelled "permissions" wrong everywhere.

Download the example file I linked for you, and count the spaces at the front of each line. Be sure to use spaces and not the tab key.

Everything working ok now?

No reply in more than 7 days. Issues must be resolved.