there! I installed Ultimate Branding in a test server

Hi there!

I installed Ultimate Branding in a test server (WP3.8.1) and I just had to manually upgrade the plugin (my subscription level cover only 1 network).

After upgrade the plugin WP continues to ask me to upgrade the plugin.
"You have version 1.6 installed. Update to 1.6". It's look very strange.

Here what I done step by step
1 - I disabled the plugin
2 - delete the plugin folder
3 - upload the new plugin folder
4 - activate the plugin

How can I fix the problem?

Thanks for your support

PS: I hope to extend my subscription in the future.