Purpur/purpur-server/minecraft-patches/sources/net/minecraft/server/PlayerAdvancements.java.patch

--- a/net/minecraft/server/PlayerAdvancements.java
+++ b/net/minecraft/server/PlayerAdvancements.java
@@ -148,6 +_,7 @@
             AdvancementHolder advancementHolder = advancementManager.get(path);
             if (advancementHolder == null) {
                 if (!path.getNamespace().equals(ResourceLocation.DEFAULT_NAMESPACE)) return; // CraftBukkit
+                if (!org.purpurmc.purpur.PurpurConfig.loggerSuppressIgnoredAdvancementWarnings) // Purpur - Logger settings (suppressing pointless logs)
                 LOGGER.warn("Ignored advancement '{}' in progress file {} - it doesn't exist anymore?", path, this.playerSavePath);
             } else {
                 this.startProgress(advancementHolder, progress);