SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".

[erik1988]

[08:07:20] [Server thread/INFO]: [SaneEconomy] Enabling SaneEconomy v0.12.7
[08:07:20] [Server thread/INFO]: [SaneEconomy] Using YAML-backed I18n from /home/main-server/plugins/SaneEconomy/messages.yml
[08:07:20] [Server thread/INFO]: [SaneEconomy] Initializing currency...
[08:07:20] [Server thread/INFO]: [SaneEconomy] Initialized currency: mynter
[08:07:20] [Server thread/INFO]: [SaneEconomy] Initializing economy storage backend...
[08:07:20] [Server thread/WARN]: SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
[08:07:20] [Server thread/WARN]: SLF4J: Defaulting to no-operation (NOP) logger implementation
[08:07:20] [Server thread/WARN]: SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
[08:07:20] [Server thread/INFO]: Initialized Hikari data source.
[08:07:20] [Server thread/INFO]: [SaneEconomy] Initialized MySQL backend.
[08:07:20] [Server thread/INFO]: [SaneEconomy] Testing connection...
[08:07:20] [Server thread/INFO]: [SaneEconomy] Connection successful!
[08:07:20] [Server thread/INFO]: [SaneEconomy] Performing initial data load...
[08:07:20] [Server thread/INFO]: [SaneEconomy] Data loaded!
[08:07:20] [Server thread/INFO]: [SaneEconomy] Initializing commands...
[08:07:20] [Server thread/INFO]: [SaneEconomy] Initialized commands.
[08:07:20] [Server thread/INFO]: [SaneEconomy] Initializing listeners...
[08:07:20] [Server thread/INFO]: [SaneEconomy] Initialized listeners.
[08:07:20] [Server thread/INFO]: [SaneEconomy] Hooked into Vault.

[AppleDash]

https://www.spigotmc.org/resources/saneeconomy-simple-but-featureful-economy.26223/

Read this, under "Help, why is..." near the bottom. This isn't an issue.