I am the maintainer of this tool https://toolsadmin.wikimedia.org/tools/id/gyan
Before some days I have enabled error reporting on the tool and asked some question on IRC.
As reported by @aborrero on T226372 the error log was showing the database and other credentials. I have disabled the error reporting and taken all steps like using another API key. I also want to change the database password as well.
Thank You in advance