diff --git a/nodes.py b/nodes.py
index 90c0fe5..874f113 100644
--- a/nodes.py
+++ b/nodes.py
@@ -13,6 +13,7 @@ from .sgm.util import instantiate_from_config
 from .SUPIR.util import convert_dtype, load_state_dict
 
 script_directory = os.path.dirname(os.path.abspath(__file__))
+
 try:
     import xformers
     import xformers.ops
@@ -22,14 +23,6 @@ except:
     XFORMERS_IS_AVAILABLE = False
 
 class SUPIR_Upscale:
-    def __init__(self):
-        self.current_sdxl_model = None
-        self.current_supir_model = None
-        self.current_diffusion_dtype = None
-        self.current_encoder_dtype = None
-        self.tiled_vae_state = None
-        self.tiled_sampling_state = None
-
     upscale_methods = ["nearest-exact", "bilinear", "area", "bicubic", "lanczos"]
 
     @classmethod
@@ -103,8 +96,8 @@ class SUPIR_Upscale:
                 encoder_dtype="auto", batch_size=1):
 
         device = mm.get_torch_device()
-        image = image.to(device)
-
+        mm.unload_all_models()
+        
         SUPIR_MODEL_PATH = folder_paths.get_full_path("checkpoints", supir_model)
         SDXL_MODEL_PATH = folder_paths.get_full_path("checkpoints", sdxl_model)
 
@@ -158,7 +151,7 @@ class SUPIR_Upscale:
         if not hasattr(self, "model") or self.model is None or self.current_config != custom_config:
             self.current_config = custom_config
             self.model = None
-            mm.unload_all_models()
+            
             mm.soft_empty_cache()
             
             if use_tiled_sampling:
@@ -211,12 +204,12 @@ class SUPIR_Upscale:
 
             if use_tiled_vae:
                 self.model.init_tile_vae(encoder_tile_size=encoder_tile_size_pixels, decoder_tile_size=decoder_tile_size_latent)
-
+        
         image, = ImageScaleBy.upscale(self, image, resize_method, scale_by)
         B, H, W, C = image.shape
         new_height = H // 64 * 64
         new_width = W // 64 * 64
-        image = image.permute(0, 3, 1, 2).contiguous()
+        image = image.permute(0, 3, 1, 2).contiguous().to(device)
         resized_image = F.interpolate(image, size=(new_height, new_width), mode='bicubic', align_corners=False)
 
         captions_list = []
diff --git a/sgm/util.py b/sgm/util.py
index 7627fef..aab8a75 100644
--- a/sgm/util.py
+++ b/sgm/util.py
@@ -175,14 +175,16 @@ def instantiate_from_config(config):
     return get_obj_from_str(config["target"])(**config.get("params", dict()))
 
 
+
 def get_obj_from_str(string, reload=False, invalidate_cache=True):
+    package_directory_name = os.path.basename(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
     module, cls = string.rsplit(".", 1)
     if invalidate_cache:
         importlib.invalidate_caches()
     if reload:
         module_imp = importlib.import_module(module)
         importlib.reload(module_imp)
-    return getattr(importlib.import_module(module, package='ComfyUI-SUPIR'), cls)
+    return getattr(importlib.import_module(module, package=package_directory_name), cls)
 
 
 def append_zero(x):