change some example and warning

Rodin.py

@@ -5,6 +5,7 @@ import time
 import random
 import base64
 import io
+import PIL
 from PIL import Image
 from io import BytesIO
 import gradio as gr
@@ -55,7 +56,7 @@ def rodin_preprocess_image(generate_prompt, image, name, token):
 
 def crop_image(image, type):
     if image == None:
-        raise gr.Error("Generate Model First")
+        raise gr.Error("Please generate the object first")
     new_image_width = 360 * (11520 // 720)  # 每隔720像素裁切一次，每次裁切宽度为360
     new_image_height = 360  # 新图片的高度
     new_image = Image.new('RGB', (new_image_width, new_image_height))
@@ -107,7 +108,10 @@ def rodin_update(prompt, task_uuid, token, settings):
     return response.json()
 
 def load_image(img_path):
-    image = Image.open(img_path)
+    try:
+        image = Image.open(img_path)
+    except PIL.UnidentifiedImageError as e:
+        raise gr.Error("Invalid Image Format")
 
     # 按比例缩小图像到长度为1024
     width, height = image.size
@@ -204,12 +208,13 @@ class Generator:
                 log("ERROR", f"Error in updating mesh: {e}")
                 time.sleep(5)
 
-        history = rodin_history(task_uuid, self.token)
         try:
+            history = rodin_history(task_uuid, self.token)
             preview_image = next(reversed(history.items()))[1]["preview_image"]
         except Exception as e:
             log("ERROR", f"Error in generating mesh: {history}")
-            raise e
+            raise gr.Error("Busy connection, please try again later.")
+        
         response = requests.get(preview_image, stream=True)
         if response.status_code == 200:
             # 创建一个PIL Image对象

app.py

@@ -62,11 +62,8 @@ options = [
 
 example = [
     ["assets/00.png"],
-    ["assets/07.png"],
     ["assets/08.png"],
-    ["assets/11.png"],
     ["assets/13.png"],
-    ["assets/21.png"],
     ["assets/24.PNG"],
     ["assets/30.png"],
     ["assets/42.png"],