Update app.py

app.py

@@ -323,7 +323,7 @@ def translate_transcriptions(df, selected_translation_lang_2):
     try:
         
         usage = requests.get('https://api-free.deepl.com/v2/usage', headers=headers)
-        usage = json.loads(response.text)
+        usage = json.loads(usage.text)
         try:
             print('Usage is at: ' + str(usage['character_count']) + 'characters')
         except Exception as e: