lost connection: Internal Exception: io.netty.handler.codec.DecoderException: java.lang.NullPointerException
heres the console
> [22:23:50] [Server thread/INFO]: The NBT library seems to be broken with your
> [22:23:50] [Server thread/INFO]: Spigot version v1_15_R1
> [22:23:50] [Server thread/INFO]: Please contact the developer of this library.
> [22:23:51] [Server thread/INFO]: [RankGrant+] Enabling RankGrant+...
i get this when i join
lost connection: Internal Exception: io.netty.handler.codec.DecoderException: java.lang.NullPointerException
heres the console
> [22:23:50] [Server thread/INFO]: The NBT library seems to be broken with your
> [22:23:50] [Server thread/INFO]: Spigot version v1_15_R1
> [22:23:50] [Server thread/INFO]: Please contact the developer of this library.
> [22:23:51] [Server thread/INFO]: [RankGrant+] Enabling RankGrant+...
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> [22:23:51] [Server thread/INFO]: [RankGrant+] Loading files...
> [22:23:51] [Server thread/INFO]: [RankGrant+] Loaded files.
> [22:23:51] [Server thread/INFO]: [RankGrant+] Registering commands...
> [22:23:51] [Server thread/INFO]: [RankGrant+] Registered commands.
> [22:23:51] [Server thread/INFO]: [RankGrant+] Registering listeners...
> [22:23:51] [Server thread/INFO]: [RankGrant+] Registered listeners.
> [22:23:51] [Server thread/INFO]: [RankGrant+] Hooking into Vault...
> [22:23:51] [Server thread/INFO]: [RankGrant+] Hooked into Vault.
> [22:23:51] [Server thread/INFO]: [RankGrant+] Starting temporary-grant expiration timer...
> [22:23:51] [Server thread/INFO]: [RankGrant+] Started temporary-grant expiration timer.
> [22:23:51] [Server thread/INFO]: [RankGrant+] Loading metrics...
> [22:23:51] [Server thread/INFO]: [RankGrant+] Loaded metrics.
> [22:23:51] [Server thread/INFO]: [RankGrant+] RankGrantPlus v3.5.2 by Demeng7215 has been successfully enabled!
> [22:23:51] [Server thread/INFO]: [RankGrant+] Checking for updates...
> [22:23:51] [Server thread/INFO]: [RankGrant+] Plugin is up-to-date.
> [22:23:51] [Server thread/INFO]: [EssentialsSpawn] Enabling EssentialsSpawn v2.17.1.0
> [22:23:51] [Server thread/INFO]: [EssentialsProtect] Enabling EssentialsProtect vPre2.14.1.3
> [22:23:51] [Server thread/WARN]: §4Version mismatch! Please update all Essentials jars to the same version.
> [22:23:51] [Server thread/INFO]: Server permissions file permissions.yml is empty, ignoring it
> [22:23:54] [Server thread/INFO]: Done (162.728s)! For help, type "help"
> [22:23:54] [Server thread/INFO]: Starting GS4 status listener
> [22:23:54] [Query Listener #1/INFO]: Query running on 0.0.0.0:10114
> [22:23:54] [Craft Scheduler Thread - 5/INFO]: [Vault] Checking for Updates ...
> [22:23:55] [Craft Scheduler Thread - 5/INFO]: [Vault] No new version available
> [22:23:59] [Server thread/INFO]: /195.188.137.196:60586 lost connection: Internal Exception: io.netty.handler.codec.DecoderException: java.lang.NullPointerException
> [22:23:59] [Server thread/INFO]: /93.89.44.145:55973 lost connection: Internal Exception: io.netty.handler.codec.DecoderException: java.lang.NullPointerException
> [22:24:27] [Server thread/INFO]: /195.188.137.196:60694 lost connection: Internal Exception: io.netty.handler.codec.DecoderException: java.lang.NullPointerException
> [22:24:44] [Server thread/INFO]: /195.188.137.196:60696 lost connection: Internal Exception: io.netty.handler.codec.DecoderException: java.lang.NullPointerException
> [22:24:50] [Server thread/INFO]: /93.89.44.145:55978 lost connection: Internal Exception: io.netty.handler.codec.DecoderException: java.lang.NullPointerException
> [22:25:24] [Server thread/INFO]: /93.89.44.145:55984 lost connection: Internal Exception: io.netty.handler.codec.DecoderException: java.lang.NullPointerException
> [22:25:28] [Server thread/INFO]: /93.89.44.145:55985 lost connection: Internal Exception: io.netty.handler.codec.DecoderException: java.lang.NullPointerException
>whitelist off
> [22:26:15] [Server thread/INFO]: Whitelist is already turned off
> [22:26:18] [Server thread/INFO]: /93.89.44.145:56063 lost connection: Internal Exception: io.netty.handler.codec.DecoderException: java.lang.NullPointerException
>hmmm
> [22:26:30] [Server thread/INFO]: Unknown command. Type "/help" for help.
> [22:26:43] [Server thread/INFO]: /195.188.137.196:60729 lost connection: Internal Exception: io.netty.handler.codec.DecoderException: java.lang.NullPointerException