Plugin installation errors

Hi Support,
I am having a similar problem as others on the board in getting the attached error on install. I would gladly download and install the Membership 2 Pro plugin via FTP, but I cannot find the download link. Can you guys help me out?
I should mention that my wp-content, plugins and themes folders are all set to 755. I tried 744 and that kind of wrecked things.
I should also mention the only plugin I could select to file this support ticket under was the Dashboard, even though I am trying to install Membership 2 Pro. Thanks!