diff --git a/modules/rembg/rembg_api.py b/modules/rembg/rembg_api.py
index ff8adf5f2..44a6c6b70 100644
--- a/modules/rembg/rembg_api.py
+++ b/modules/rembg/rembg_api.py
@@ -40,5 +40,4 @@ async def post_rembg(
 
 
 def register_api(app):
-    print('HERE')
     app.add_api_route("/sdapi/v1/rembg", post_rembg, methods=["POST"], tags=["REMBG"])
diff --git a/modules/scripts_postprocessing.py b/modules/scripts_postprocessing.py
index dc7c66986..33726232d 100644
--- a/modules/scripts_postprocessing.py
+++ b/modules/scripts_postprocessing.py
@@ -18,7 +18,7 @@ class ScriptPostprocessing:
     args_from = None
     args_to = None
     order = 1000 # scripts will be ordred by this value in postprocessing UI
-    name = None # this function should return the title of the script
+    name = 'unknown' # this function should return the title of the script
     group = None # A gr.Group component that has all script's UI inside it
 
     def ui(self):
@@ -39,6 +39,9 @@ class ScriptPostprocessing:
     def image_changed(self):
         pass
 
+    def __str__(self):
+        return f"ScriptPostprocessing(name={self.name} filename={self.filename})"
+
 
 def wrap_call(func, filename, funcname, *args, default=None, **kwargs):
     try:
@@ -60,6 +63,9 @@ class ScriptPostprocessingRunner:
         for script_class, path, _basedir, _script_module in scripts_data:
             script: ScriptPostprocessing = script_class()
             script.filename = path
+            if script.name is None or script.name == "unknown":
+                log.warning(f'Script: path={path} cls={script_class} invalid')
+                continue
             if script.name == "Simple Upscale":
                 continue
             self.scripts.append(script)
@@ -68,7 +74,9 @@ class ScriptPostprocessingRunner:
         script.args_from = len(inputs)
         script.args_to = len(inputs)
         script.controls = wrap_call(script.ui, script.filename, "ui")
-        for control in script.controls.values() if script.controls is not None else []:
+        if script.controls is None:
+            script.controls = {}
+        for control in script.controls.values():
             control.custom_script_source = os.path.basename(script.filename)
         inputs += list(script.controls.values())
         script.args_to = len(inputs)
diff --git a/scripts/postprocessing_rembg.py b/scripts/postprocessing_rembg.py
index 2d57ae7c8..9e3bba6e4 100644
--- a/scripts/postprocessing_rembg.py
+++ b/scripts/postprocessing_rembg.py
@@ -1,7 +1,7 @@
 import os
 import gradio as gr
 from PIL import Image
-from modules.scripts_postprocessing import ScriptPostprocessing, PostprocessedImage
+from modules import scripts_postprocessing
 
 
 models = [
@@ -18,7 +18,7 @@ models = [
 ]
 
 
-class ScriptPostprocessingUpscale(ScriptPostprocessing):
+class ScriptPostprocessingRembg(scripts_postprocessing.ScriptPostprocessing):
     name = "Remove background"
     order = 20000
     model = None
@@ -59,7 +59,7 @@ class ScriptPostprocessingUpscale(ScriptPostprocessing):
                 "alpha_matting_erode_size": alpha_matting_erode_size,
             }
 
-    def process(self, pp: PostprocessedImage, model, merge_alpha, refine, mask_only, postprocess_mask, alpha_matting, alpha_matting_foreground_threshold, alpha_matting_background_threshold, alpha_matting_erode_size): # pylint: disable=arguments-differ
+    def process(self, pp: scripts_postprocessing.PostprocessedImage, model, merge_alpha, refine, mask_only, postprocess_mask, alpha_matting, alpha_matting_foreground_threshold, alpha_matting_background_threshold, alpha_matting_erode_size): # pylint: disable=arguments-differ
         from modules.logger import log
         if not model or model == "none":
             return pp
@@ -108,7 +108,7 @@ class ScriptPostprocessingUpscale(ScriptPostprocessing):
             image = flattened
 
         if isinstance(pp, Image.Image):
-            pp = PostprocessedImage(image=image, info={ **info, 'Rembg': model })
+            pp = scripts_postprocessing.PostprocessedImage(image=image, info={**info, "Rembg": model})
         else:
             pp.image = image
             pp.info['Rembg'] = model