hi, the plugin is not working. please fix it. error:
[19:38:09] [Server thread/WARN]: [UpgradeableSpawners] [Tasks] Error: Failed to run spawn task for spawner: Spawner{id=6,coordinate=BlockPosition{world=CraftWorld{name=world},x=178,y=68,z=273},status=RUNNING,chunk=SpawnerChunk{x=11,z=17,status=RUNNING}} [19:38:09] [Server thread/WARN]: java.lang.IllegalAccessError: class me.angeschossen.upgradeablespawners.UpgradeableSpawners$1 tried to access private field me.angeschossen.upgradeablespawners.UpgradeableSpawners.NxfVW (me.angeschossen.upgradeablespawners.UpgradeableSpawners$1 and me.angeschossen.upgradeablespawners.UpgradeableSpawners are in unnamed module of loader 'UpgradeableSpawners-4.12.0.jar' @2a51be58) [19:38:09] [Server thread/WARN]: at UpgradeableSpawners-4.12.0.jar//me.angeschossen.upgradeablespawners.UpgradeableSpawners$1.NJSja(?:60) [19:38:09] [Server thread/WARN]: at UpgradeableSpawners-4.12.0.jar//me.angeschossen.vevKK.serLy.vevKK.NJSja.FPYxi(?:132) [19:38:09] [Server thread/WARN]: at UpgradeableSpawners-4.12.0.jar//me.angeschossen.vevKK.serLy.NJSja.vevKK(?:44) [19:38:09] [Server thread/WARN]: at UpgradeableSpawners-4.12.0.jar//me.angeschossen.vevKK.serLy.vevKK.NJSja.vevKK(?:120) [19:38:09] [Server thread/WARN]: at UpgradeableSpawners-4.12.0.jar//me.angeschossen.vevKK.serLy.vevKK.NJSja.NJSja(?:28) [19:38:09] [Server thread/WARN]: at UpgradeableSpawners-4.12.0.jar//me.angeschossen.vevKK.serLy.vevKK.vevKK(?:24) [19:38:09] [Server thread/WARN]: at UpgradeableSpawners-4.12.0.jar//me.angeschossen.vevKK.OqjOn.OqjOn.vevKK(?:238) [19:38:09] [Server thread/WARN]: at UpgradeableSpawners-4.12.0.jar//me.angeschossen.upgradeablespawners.QmAmI.vevKK.OqjOn.vevKK.vevKK(?:1053) [19:38:09] [Server thread/WARN]: at UpgradeableSpawners-4.12.0.jar//me.angeschossen.upgradeablespawners.QmAmI.vevKK.OqjOn.vevKK.cxrwk(?:941) [19:38:09] [Server thread/WARN]: at UpgradeableSpawners-4.12.0.jar//me.angeschossen.upgradeablespawners.EWRWt.OqjOn.hyNIL(?:63) [19:38:09] [Server thread/WARN]: at UpgradeableSpawners-4.12.0.jar//me.angeschossen.upgradeablespawners.cxrwk.mBOwQ.vevKK.vevKK.NJSja.QmAmI(?:63) [19:38:09] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_19_R3.scheduler.CraftTask.run(CraftTask.java:101) [19:38:09] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_19_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:483) [19:38:09] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:1510) [19:38:09] [Server thread/WARN]: at net.minecraft.server.dedicated.DedicatedServer.b(DedicatedServer.java:488) [19:38:09] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:1424) [19:38:09] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:1195) [19:38:09] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:325) [19:38:09] [Server thread/WARN]: at java.base/java.lang.Thread.run(Thread.java:842)