Hello,
I doubt, this alone got you from 1 to 6th position. Crawlers are not supposed to visit this url, but if it bothers you you can exclude it, in your google console. Dit you try this?
- Need help? Post the URL of the related page (eventualy as confidential info), it will help solve your issue faster.
- An error, notice or warning? report the exact message including the line number
- If you get a white page , enable error reporting and / or check your server error logs.