Warning JInstaller: :Install: Can't find Joomla XML setup file.

I purchased your payPal plugin for MP, but I cannot install it on my Joomla. There is an error message "Warning
JInstaller: :Install: Can't find Joomla XML setup file." I unzipped the files (as it was stated on the file name) and tried to install it but it won't get installed.
Is it possible to manually upload the file using FTP program, if so, where can I put the file 'os_osm_paypal_pro' ?
Please advise me.
Thanks,
Yuri

Hello

You need to go to Membership Pro -> Payment Plugins to install and it should be installed properly. See membershipprodoc.joomservices.com/basic-...l-new-payment-plugin for detailed instructions

Tuan