Moving a JReviews install to a different server
Once you move your site to a different server, the first thing you'll see when you try to open a JReviews page is the following error:
Fatal error: Class 'I18n' not found in /path/to/joomla/root/components/com_s2framework/s2framework/basics.php on line 206
You will need to use your ftp client to go to the /components/com_s2framework/tmp/cache/core folder and delete the file: s2_jreviews_paths_{random_numbers}
This is the JReviews File Registry and it has file paths for your old server. JReviews will automatically create a new one for you.
I deleted the file and the error is still there, what now?
If the error doesn't go away, then make sure all the folders under /components/com_s2framework/tmp are writable. In most cases this means you need to change their permissions to 777.
I am not getting an invalid license error message
If you moved both servers and domains read How to move the JReviews license to a different domain.