Update modelloader.py

os.path.getmtime(filename) throws exception later in codepath when meeting broken symlink. For now catch it here early but more checks could be added for robustness.

modules/modelloader.py

@@ -45,6 +45,9 @@ def load_models(model_path: str, model_url: str = None, command_path: str = None
                     full_path = file
                     if os.path.isdir(full_path):
                         continue
+                    if os.path.islink(full_path) and not os.path.exists(full_path):
+                        print(f"Skipping broken symlink: {full_path}")
+                        continue
                     if ext_blacklist is not None and any([full_path.endswith(x) for x in ext_blacklist]):
                         continue
                     if len(ext_filter) != 0: