Hello Kiran,
The first message was probably shown because you installed the archive before unzipping it or on a non j3 site.
If you get errors while installing com_bannersauctions-1.0.zip, they might be different as the one mentioned before, as I just tryed the installation and it went without issue.
So please paste the new error here.
Note: AlphaUserPoints (alphaplug.com) component must be installed before you installed the Baner Wizzard or it will cause an eror during installation. This might be your case. Let me know.
- 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.