Update utils/app_utils.py

utils/app_utils.py

@@ -196,7 +196,7 @@ def get_lora_path(source: str, id_or_url: str, civitai_key: str, progress) -> tu
             filename = sanitize_filename(f"{version_id}{file_ext}")
             save_dir = os.path.join(LORA_DIR, "civitai")
             local_path = os.path.join(save_dir, filename)
-            api_key_to_use = civitai_key
+            api_key_to_use = civitai_key or os.environ.get("CIVITAI_API_KEY", "")
             source_name = f"Civitai ID {version_id}"
         elif source == "Hugging Face":
             parts = id_or_url.strip().split('/')