404 a padding to disable MSIE and Chrome friendly error page

Hi,

I installed wordpress in a VPS, in the VPS there are two other sites that work normally, while the new one gives me this error Deletion failed: 404 Not Found 404 Not Found nginx <!– a padding to disable MSIE and Chrome friendly error page – -> <!– a padding to disable MSIE and Chrome friendly error page –> <!– a padding to disable MSIE and Chrome friendly error page –> <!– a padding to disable MSIE and Chrome friendly error page –> <!– a padding to disable MSIE and Chrome friendly error page –> <!– a padding to disable MSIE and Chrome friendly error page –> when I try to uninstall a plugin or change the Thema, does anyone know how to solve this problem?