Added exception handling

pipeline.py

@@ -175,12 +175,18 @@ CACHE_SIZE_LIMIT = 1000
 
 # Fallback
 fallback_groq_api_key = os.environ.get("GROQ_API_KEY_FALLBACK", "GROQ_API_KEY")
-groq_fallback_llm = ChatGroq(
-    model=GROQ_MODELS["default"],
-    temperature=0.7,
-    groq_api_key=fallback_groq_api_key,
-    max_tokens=2048
-)
+
+# Attempt to initialize ChatGroq without a cache
+try:
+    groq_fallback_llm = ChatGroq(
+        model=GROQ_MODELS["default"],
+        temperature=0.7,
+        groq_api_key=fallback_groq_api_key,
+        max_tokens=2048
+    )
+except Exception as e:
+    logger.error(f"Failed to initialize ChatGroq: {e}")
+    raise RuntimeError("ChatGroq initialization failed.") from e
 
 # -------------------------------------------------------
 # Rate-limit & Cache