resolve halt while starting up (#3397)

### What problem does this PR solve?


### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

api/validation.py

 import sys
 from api.utils.log_utils import logger
 
+
 def python_version_validation():
     # Check python version
     required_python_version = (3, 10)
 
 # Download nltk data
 import nltk
-nltk.download('wordnet')
-nltk.download('punkt_tab')
+nltk.download('wordnet', halt_on_error=False, quiet=True)
+nltk.download('punkt_tab', halt_on_error=False, quiet=True)

rag/nlp/rag_tokenizer.py

         except Exception:
             logger.exception(f"[HUQIE]:Build trie {fnm} failed")
 
-
     def __init__(self, debug=False):
         self.DEBUG = debug
         self.DENOMINATOR = 1000000