fix another annoying error

Dockerfile

@@ -36,12 +36,11 @@ ENV TOKENIZERS_PARALLELISM=false
 ENV TORCH_CPP_LOG_LEVEL=ERROR
 ENV PYTORCH_DISABLE_SYSTEM_MONITORING=1
 
-# Set a writable cache directory for Hugging Face
-ENV TRANSFORMERS_CACHE=/app/cache
+# Set writable cache directory for Hugging Face
 ENV HF_HOME=/app/cache
 
-# Create the cache directory
-RUN mkdir -p /app/cache
+# Create and set permissions for the cache directory
+RUN mkdir -p /app/cache && chmod -R 777 /app/cache
 
 # Expose the app's default port
 EXPOSE 7860