•  Make sure that your site does not have invalid HTML. For example, unclosed html tags specially div can affect various plugins. Apps In Tabs plugin may also display tabs wrongly if you have invalid html like invalid/unclosed div tags in your JomSocial/Joomla template. You can check your site's html validity using any good online html validator, like:

• There should be no javascript errors. For example, when JQuery and Mootools are both used, there should be no conflict or Javascript error. For example, if a Chat application is producing javascript errors may stop functioning Apps In Tabs plugin. You can use Firebug extension in Firefox to see javascript errors on your site.
• If you face a problem with an extension, try it on a fresh test joomla/jomsocial installation. You can do it in a sub folder on your site. You may add other extensions/plugins one by one to find the problematic one.
• If you see a blank white page after installing an extension, you can manually delete the php files of that extension via ftp to bring your site back. After resolving the issue, you can reinstall your extension.
• "My Licenses" section is not for all products. You do not need to generate any license unless you are requested by the extension after installation.

Dowload Problem:

• If you have paid for a product and waiting for an email containing download instructions, then check your spam/bulk folder. That email may have gone there.
• If you do not find an email and was logged in when you purchased, please try login with the same account, go to the download area and download your extension.
• If you bought an item as a visitor (not logged in) but already have an account here then your item will automatically be attached with your account and you can download by logging in with that account. So, if you did not received an email from us, you can login with your existing account and check the downloads area.
• If anything else, contact us.

Other:
If in case your site became unaccessible after installing/enabling any of our plugin, Just delete that plugin's php file using FTP. Your site will be back if that was because of our plugin. Then contact us for further help.