[01:19:02 ERROR]: Error occurred while enabling PlasmoVoice v2.1.5 (Is it up to date?)
java.lang.NoSuchMethodError: 'java.io.File su.plo.voice.api.server.PlasmoVoiceServer.getConfigsFolder()'
at pv-addon-priority-1.0.0.jar/su.plo.voice.priority.PriorityAddon.loadConfig(PriorityAddon.java:49) ~[pv-addon-priority-1.0.0.jar:?]
at pv-addon-priority-1.0.0.jar/su.plo.voice.priority.PriorityAddon.onAddonInitialize(PriorityAddon.java:39) ~[pv-addon-priority-1.0.0.jar:?]
at PlasmoVoice-Paper-2.1.5.jar/su.plo.voice.addon.VoiceAddonManager.initializeAddon(VoiceAddonManager.kt:130) ~[PlasmoVoice-Paper-2.1.5.jar:?]
at PlasmoVoice-Paper-2.1.5.jar/su.plo.voice.addon.VoiceAddonManager.initializeLoadedAddons(VoiceAddonManager.kt:91) ~[PlasmoVoice-Paper-2.1.5.jar:?]
at PlasmoVoice-Paper-2.1.5.jar/su.plo.voice.server.BaseVoiceServer.loadConfig(BaseVoiceServer.java:273) ~[PlasmoVoice-Paper-2.1.5.jar:?]
at PlasmoVoice-Paper-2.1.5.jar/su.plo.voice.server.BaseVoiceServer.onInitialize(BaseVoiceServer.java:161) ~[PlasmoVoice-Paper-2.1.5.jar:?]
at PlasmoVoice-Paper-2.1.5.jar/su.plo.voice.paper.PaperVoiceServer.onInitialize(PaperVoiceServer.kt:24) ~[PlasmoVoice-Paper-2.1.5.jar:?]
at PlasmoVoice-Paper-2.1.5.jar/su.plo.voice.paper.PaperVoiceLoader.onEnable(PaperVoiceLoader.kt:10) ~[PlasmoVoice-Paper-2.1.5.jar:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:280) ~[purpur-api-1.21.6-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlugin(PaperPluginInstanceManager.java:202) ~[purpur-1.21.6.jar:1.21.6-2461-04a9045]
at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:109) ~[purpur-1.21.6.jar:1.21.6-2461-04a9045]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:520) ~[purpur-api-1.21.6-R0.1-SNAPSHOT.jar:?]
at org.bukkit.craftbukkit.CraftServer.enablePlugin(CraftServer.java:665) ~[purpur-1.21.6.jar:1.21.6-2461-04a9045]
at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:621) ~[purpur-1.21.6.jar:1.21.6-2461-04a9045]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:270) ~[purpur-1.21.6.jar:1.21.6-2461-04a9045]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1179) ~[purpur-1.21.6.jar:1.21.6-2461-04a9045]
at net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:313) ~[purpur-1.21.6.jar:1.21.6-2461-04a9045]
at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]
[01:19:02 INFO]: [PlasmoVoice] Disabling PlasmoVoice v2.1.5

Update pv-addon-priority to the latest version:
https://modrinth.com/plugin/pv-addon-priority/version/1.1.0

If you encounter similar issue with other addons, update them to the latest versions.