had to remove the :int on route for Flask to load now - a library was failing with a converter / lookup failure

ai.py

@@ -155,7 +155,7 @@ def unmatched_faces():
 
 
 ################################################################################
-@app.route("/get_face_from_image/<face_id:int>", methods=["POST"])
+@app.route("/get_face_from_image/<face_id>", methods=["POST"])
 @login_required
 def get_face_from_image(face_id):
     """ route to handle URL: /get_face_from_image/<face_id:int>