Update app.py

app.py

@@ -74,7 +74,7 @@ def find_fn(lvl_1,lvl_2,fetch_url,config="TEST",split="test",offset=0,length=10)
     if lvl_2 == "":
         img_list.append(out_json[lvl_1])
     return img_list
-def upd_drop(lvl_1,lvl_2,lvl_3,lvl_4,lvl_5,fetch_url,config="TEST",split="test",offset=0,length=10):
+def upd_drop(lvl_1=None,lvl_2=None,lvl_3=None,lvl_4=None,lvl_5=None,fetch_url="",config="TEST",split="test",offset=0,length=10):
     out_json,_=query2(fetch_url,config,split,offset=10,length=20)
     box_1=[]
     box_2=[]