Removing instance will create a memory leak, & scoreboardmanager will trow this issue:
[17:52:50 WARN]: Exception in thread "Craft Scheduler Thread - 59"
[17:52:50 WARN]: org.apache.commons.lang.UnhandledException: Plugin SternalBoard v1.5 generated an exception while executing task 2
at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:57)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: java.lang.NullPointerException
Removing instance will create a memory leak, & scoreboardmanager will trow this issue: [17:52:50 WARN]: Exception in thread "Craft Scheduler Thread - 59" [17:52:50 WARN]: org.apache.commons.lang.UnhandledException: Plugin SternalBoard v1.5 generated an exception while executing task 2 at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:57) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:829) Caused by: java.lang.NullPointerException