Having trouble upgrading to Membership 2

I’m trying to finally upgrade from Membership (version 3.5.3.3) to Membership2, now that I see 2Checkout gateway is supported by the new plugin.

However, the button to unlock the upgrade doesn’t appear. Also, the plugin doesn’t seem to register as installed for purposes of this support form (I couldn’t select it in the drop down as an installed plugin, hence why I’ve been forced to select the Dashboard).

I’ve granted support access, so feel free to take a look yourself.

Please let me know what I need to do.