The error below comes up because SimpleCoins, PlaceholderAPI, and Vault are having a problem with each other. How can I fix this without removing any plugins?
Info:
Plugins: LuckPerms, CustomDeathMessages, WorldEdit, OpenInv, PlaceholderAPI, ArmorStandEditor, EasyWarp, ServerRestorer, Vault, Multiverse-Core, WorldGuard, ProtocolLib, LuckPermsChat, VanishNoPacket, Scoreboard-revision, Multiverse-Inventories, PwnFilter, Multiverse-Portals, HolographicDisplays, SimpleCoins, AParkour, Multiverse-NetherPortals
Server Version: Spigot 1.14.4 (git-Spigot-cbd1a1b-009d8af)
OS:
Linux [computername] 5.0.0-38-generic #41-Ubuntu SMP Tue Dec 3 00:27:35 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
openjdk version "11.0.5" 2019-10-15
OpenJDK Runtime Environment (build 11.0.5+10-post-Ubuntu-0ubuntu1.119.04)
OpenJDK 64-Bit Server VM (build 11.0.5+10-post-Ubuntu-0ubuntu1.119.04, mixed mode, sharing)
The Error:
[11:45:49] [Craft Scheduler Thread - 5/WARN]: [PlaceholderAPI] Plugin PlaceholderAPI v2.10.6 generated an exception while executing task 64
java.lang.NullPointerException: null
at de.lalo5.simplecoins.CoinManager.getCoins(CoinManager.java:92) ~[?:?]
at de.lalo5.simplecoins.CoinManager.getCoins(CoinManager.java:79) ~[?:?]
at de.lalo5.simplecoins.CoinManager$SimpleEconomy.getBalance(CoinManager.java:350) ~[?:?]
at com.extendedclip.papi.expansion.vault.VaultEcoHook.getBalance(VaultEcoHook.java:220) ~[?:?]
at com.extendedclip.papi.expansion.vault.BalTopTask.run(BalTopTask.java:48) ~[?:?]
at org.bukkit.craftbukkit.v1_14_R1.scheduler.CraftTask.run(CraftTask.java:81) ~[spigot-1.14.4.jar:git-Spigot-cbd1a1b-009d8af]
at org.bukkit.craftbukkit.v1_14_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:54) [spigot-1.14.4.jar:git-Spigot-cbd1a1b-009d8af]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
at java.lang.Thread.run(Thread.java:834) [?:?]