Update Dockerfile

Dockerfile

@@ -25,12 +25,14 @@ COPY requirements.txt /app/
 RUN pip install --no-cache-dir -r requirements.txt
 
 # Create and set permissions for the cache directory
-RUN mkdir -p /app/cache /app/VectorDB /app/uploads && \
-    chmod -R 777 /app/cache /app/VectorDB /app/uploads
+RUN mkdir -p /app/cache /app/VectorDB /app/uploads /app/nltk_data /nltk_data && \
+    chmod -R 777 /app/cache /app/VectorDB /app/uploads /app/nltk_data /nltk_data
 
 # Ensure all relevant directories have the correct permissions
 RUN chmod -R 777 /app/VectorDB
 RUN chmod -R 777 /app/uploads
+RUN chmod -R 777 /app/nltk_data
+RUN chmod -R 777 /nltk_data
 RUN chmod -R 777 /app
 
 # Copy the rest of the application code to /app