The latest JFBConnect 6.2.4 release broke the 2MB mark. Usually we see a different error for upload_max_filesize. However, it's possible that the problem is your PHP upload limit is set to 2MB.
There's a few ways to solve:
* You can configure Joomla to use the FTP uploader. That's done by setting your FTP credentials in the Joomla Global Configuration area. This is the simplest way and Joomla has this ability built-in for just this type of scenario.
* Edit the php.ini file. The settings you should need would be:
upload_max_filesize="3M"
post_max_size="3M"
For more information on those, or any other ini settings, see:
php.net/manual/en/ini.core.php
Let me know if this helps.
-Melissa