Fail even if error is none

nhentai-comment-info.py

@@ -25,7 +25,7 @@ async def nhentai_comment_info(client, message):
                 async with session.get(f'https://nhentai.net/api/gallery/{sauce}') as resp:
                     info = await resp.json()
                 text = f'<b>{sauce}</b>\n<b>'
-                if info.get('error'):
+                if 'error' in info:
                     text += f'Error:</b> {html.escape(info.get("error"))}'
                 else:
                     text += 'Title:</b> '