diff --git a/src/main/java/net/aoba/gui/font/FontManager.java b/src/main/java/net/aoba/gui/font/FontManager.java
index 9f05abc8..a8c507ec 100644
--- a/src/main/java/net/aoba/gui/font/FontManager.java
+++ b/src/main/java/net/aoba/gui/font/FontManager.java
@@ -24,11 +24,14 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.ByteBuffer;
+import java.nio.file.Files;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+
 import org.lwjgl.PointerBuffer;
 import org.lwjgl.stb.STBTTFontinfo;
 import org.lwjgl.system.MemoryStack;
@@ -54,11 +57,11 @@ public class FontManager {
 	private MinecraftClient MC;
 	private TextRenderer currentFontRenderer;
 
-	public HashMap<String, TextRenderer> fontRenderers;
+	public ConcurrentHashMap<String, TextRenderer> fontRenderers;
 	public StringSetting fontSetting;
 	
 	public FontManager() {
-		fontRenderers = new HashMap<String, TextRenderer>();
+		fontRenderers = new ConcurrentHashMap<>();
 		MC = MinecraftClient.getInstance();
 		
 		fontSetting = new StringSetting("font", "The font that Aoba will use.", "minecraft");
@@ -72,38 +75,31 @@ public FontManager() {
 
 	public void Initialize() {
 		fontRenderers.put("minecraft", MC.textRenderer);
-		
-		File fontDirectory = new File(MC.runDirectory + "\\aoba\\fonts\\");
-		if (fontDirectory.isDirectory()) {
-			File[] files = fontDirectory.listFiles(new FilenameFilter() {
-				@Override
-				public boolean accept(File dir, String name) {
-					return name.endsWith(".ttf");
-				}
-			});
 
-			for (File file : files) {
-				List<Font.FontFilterPair> list = new ArrayList<Font.FontFilterPair>();
+		File fontDirectory = new File(MC.runDirectory + File.separator + "aoba" + File.separator + "fonts");
+		if (fontDirectory.exists() && fontDirectory.isDirectory()) {
+			File[] files = fontDirectory.listFiles((dir, name) -> name.endsWith(".ttf"));
 
-				try {
-					Font font = LoadTTFFont(file, 12.5f, 2, new TrueTypeFontLoader.Shift(-1, 0), "");
-					list.add(new Font.FontFilterPair(font, FilterMap.NO_FILTER));
-				} catch (Exception e) {
-					e.printStackTrace();
-				}
+			if (files != null) {
+				for (File file : files) {
+					try {
+						Font font = LoadTTFFont(file, 12.5f, 2, new TrueTypeFontLoader.Shift(-1, 0), "");
+						List<Font.FontFilterPair> list = new ArrayList<>();
+						list.add(new Font.FontFilterPair(font, FilterMap.NO_FILTER));
 
-				try (FontStorage storage = new FontStorage(MC.getTextureManager(), Identifier.of("aoba:" + file.getName()))) {
-					storage.setFonts(list, Set.of());
-					fontRenderers.put(file.getName().replace(".ttf", ""), new TextRenderer(id -> storage, true));
+						try (FontStorage storage = new FontStorage(MC.getTextureManager(), Identifier.of("aoba:" + file.getName()))) {
+							storage.setFonts(list, Set.of());
+							fontRenderers.put(file.getName().replace(".ttf", ""), new TextRenderer(id -> storage, true));
+						}
+					} catch (Exception e) {
+						System.err.println("Failed to load font: " + file.getName());
+						e.printStackTrace();
+					}
 				}
 			}
 		}
 
-		Iterator<TextRenderer> newFonts = fontRenderers.values().iterator();
-		if(newFonts.hasNext()) {
-			currentFontRenderer = newFonts.next();
-		}
-		
+		currentFontRenderer = fontRenderers.values().iterator().next();
 	}
 
 	public TextRenderer GetRenderer() {
@@ -116,51 +112,23 @@ public void SetRenderer(TextRenderer renderer) {
 	}
 
 	private static Font LoadTTFFont(File location, float size, float oversample, Shift shift, String skip) throws IOException {
-		TrueTypeFont trueTypeFont = null;
-		STBTTFontinfo sTBTTFontinfo = null;
-		ByteBuffer byteBuffer = null;
-
-		InputStream inputStream = new FileInputStream(location);
-		try {
-			sTBTTFontinfo = STBTTFontinfo.malloc();
-			byte[] test = inputStream.readAllBytes();
-			byteBuffer = ByteBuffer.allocateDirect(test.length);
-			byteBuffer.put(test, 0, test.length);
-			byteBuffer.flip();
-
-			MemoryStack memoryStack = MemoryStack.stackPush();
-            PointerBuffer pointerBuffer = memoryStack.mallocPointer(1);
-            FreeTypeUtil.checkFatalError(FreeType.FT_New_Memory_Face(FreeTypeUtil.initialize(), byteBuffer, 0L, pointerBuffer), "Initializing font face");
-            FT_Face fT_Face = FT_Face.create(pointerBuffer.get());
-                
-            String string = FreeType.FT_Get_Font_Format(fT_Face);
-            if (!"TrueType".equals(string)) {
-            	throw new IOException("Font is not in TTF format, was " + string);
-                }
-                FreeTypeUtil.checkFatalError(FreeType.FT_Select_Charmap(fT_Face, FreeType.FT_ENCODING_UNICODE), "Find unicode charmap");
-                trueTypeFont = new TrueTypeFont(byteBuffer, fT_Face, size, oversample, shift.x(),
-    					shift.y(), skip);
-			
-		} catch (Throwable throwable) {
-			try {
-				if (inputStream != null) {
-					try {
-						inputStream.close();
-					} catch (Throwable throwable2) {
-						throwable.addSuppressed(throwable2);
-					}
-				}
-				throw throwable;
-			} catch (Exception exception) {
-				if (sTBTTFontinfo != null) {
-					sTBTTFontinfo.free();
-				}
-				MemoryUtil.memFree(byteBuffer);
-				throw exception;
+		ByteBuffer byteBuffer = MemoryUtil.memAlloc(Files.readAllBytes(location.toPath()).length);
+		byteBuffer.put(Files.readAllBytes(location.toPath())).flip();
+
+		try (MemoryStack memoryStack = MemoryStack.stackPush()) {
+			PointerBuffer pointerBuffer = memoryStack.mallocPointer(1);
+			FreeTypeUtil.checkFatalError(FreeType.FT_New_Memory_Face(FreeTypeUtil.initialize(), byteBuffer, 0L, pointerBuffer), "Initializing font face");
+			FT_Face fT_Face = FT_Face.create(pointerBuffer.get());
+
+			String string = FreeType.FT_Get_Font_Format(fT_Face);
+			if (!"TrueType".equals(string)) {
+				throw new IOException("Font is not in TTF format, was " + string);
 			}
-		}
-		inputStream.close();
+			FreeTypeUtil.checkFatalError(FreeType.FT_Select_Charmap(fT_Face, FreeType.FT_ENCODING_UNICODE), "Find unicode charmap");
 
-		return trueTypeFont;
+			return new TrueTypeFont(byteBuffer, fT_Face, size, oversample, shift.x(), shift.y(), skip);
+		} finally {
+			MemoryUtil.memFree(byteBuffer);
+		}
 	}
 }
diff --git a/src/main/java/net/aoba/gui/tabs/HudOptionsTab.java b/src/main/java/net/aoba/gui/tabs/HudOptionsTab.java
index 5aa14596..ab84766f 100644
--- a/src/main/java/net/aoba/gui/tabs/HudOptionsTab.java
+++ b/src/main/java/net/aoba/gui/tabs/HudOptionsTab.java
@@ -22,6 +22,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
 
 import net.aoba.Aoba;
 import net.aoba.gui.GuiManager;
@@ -41,7 +42,7 @@ public HudOptionsTab() {
         stackPanel.setTop(30);
 
         List<String> fontNames = new ArrayList<String>();
-        HashMap<String, TextRenderer> fontRenderers = Aoba.getInstance().fontManager.fontRenderers;
+        ConcurrentHashMap<String, TextRenderer> fontRenderers = Aoba.getInstance().fontManager.fontRenderers;
         Set<String> set = fontRenderers.keySet();
 
         for (String s : set) {
diff --git a/src/main/java/net/aoba/gui/tabs/HudsTab.java b/src/main/java/net/aoba/gui/tabs/HudsTab.java
index 6fec1eec..dca4bbf7 100644
--- a/src/main/java/net/aoba/gui/tabs/HudsTab.java
+++ b/src/main/java/net/aoba/gui/tabs/HudsTab.java
@@ -22,6 +22,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
 
 import net.aoba.Aoba;
 import net.aoba.gui.GuiManager;
@@ -45,7 +46,7 @@ public HudsTab(AbstractHud[] abstractHuds) {
         List<String> test = new ArrayList<String>();
 
 
-        HashMap<String, TextRenderer> fontRenderers = Aoba.getInstance().fontManager.fontRenderers;
+        ConcurrentHashMap<String, TextRenderer> fontRenderers = Aoba.getInstance().fontManager.fontRenderers;
         Set<String> set = fontRenderers.keySet();
 
         for (String s : set) {