tested and improved the code

server/core/src/main/java/dev/slimevr/config/ConfigManager.java

@@ -16,6 +16,8 @@
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.nio.file.*;
+import java.util.Comparator;
+import java.util.stream.Stream;
 
 
 public class ConfigManager {
@@ -118,17 +120,25 @@ public synchronized void saveConfig() {
 			// delete accidental folder caused by PR
 			// https://github.com/SlimeVR/SlimeVR-Server/pull/1176
 			var cfgFileMaybeFolder = cfgFile.toFile();
-			if (cfgFileMaybeFolder.isDirectory() && cfgFileMaybeFolder.delete()) {
-				LogManager
-					.severe(
-						"Unable to delete folder that has same name as the config file on path \""
-							+ cfgFile
-							+ "\""
-					);
-				return;
+			if (cfgFileMaybeFolder.isDirectory()) {
+				try (Stream<Path> pathStream = Files.walk(cfgFile)) {
+					var list = pathStream.sorted(Comparator.reverseOrder()).toList();
+					for (var path : list) {
+						Files.delete(path);
+					}
+				} catch (IOException e) {
+					LogManager
+						.severe(
+							"Unable to delete folder that has same name as the config file on path \""
+								+ cfgFile
+								+ "\""
+						);
+					return;
+				}
+
 			}
-			var cfgFolder = cfgFile.getParent().toFile();
-			if (!cfgFolder.getAbsoluteFile().exists() && !cfgFolder.mkdirs()) {
+			var cfgFolder = cfgFile.toAbsolutePath().getParent().toFile();
+			if (!cfgFolder.exists() && !cfgFolder.mkdirs()) {
 				LogManager
 					.severe("Unable to create folders for config on path \"" + cfgFile + "\"");
 				return;