diff --git a/base/Dockerfile b/base/Dockerfile
index 78cde63..4d07414 100644
--- a/base/Dockerfile
+++ b/base/Dockerfile
@@ -5,5 +5,6 @@ ENV PYTHONUNBUFFERED=1
 WORKDIR /app
 COPY app .
 RUN pip install --no-cache-dir -r requirements.txt
+EXPOSE 5123/tcp
 
 CMD ["python", "./app.py"]
diff --git a/base/app/app.py b/base/app/app.py
index 076117a..71f47bd 100644
--- a/base/app/app.py
+++ b/base/app/app.py
@@ -29,6 +29,7 @@ def b64_lazy_decode(s: str) -> str|None:
         this = base64.b64decode(s + "=" * ((4 - len(s)) % 4))
         return this.decode('utf-8').rstrip('\n')
     except Exception as e:
+        print(f"Error decoding base64: {e}")
         return None
 
 def fetch_metadata(url: str, max_retries=5) -> dict|None: