Catch exceptions in process_order and return error

app.py

@@ -1,5 +1,5 @@
 import os
-from flask import Flask, request, json, abort
+from flask import Flask, request, json, abort, jsonify
 from flask_cors import CORS
 
 import sentry_sdk
@@ -70,6 +70,10 @@
     print "Processing order for: " + order["email"]
     cart = order["cart"]
 
-    process_order(cart)
+    try:
+        process_order(cart)
+    except Exception as err:
+        sentry_sdk.capture_exception(err)
+        return jsonify({"error": str(err)}), 400
 
     return 'Success'