Someone tried to make your theme compatible with BP using the first method — changing 16 BP template files starting with /activity/index.php. I see a duplicate `
` within the file I mentioned.
To make sure that you have clean BP template files, delete the 6 BP folders transferred to your puretype theme folder in your server. Then re-run Appearance > BP Compatiblity and go through the process of transferring clean new BP template files.