The problem is caused by the jQuery plugin that creates the floating tab not be loaded.
There are 2 main reasons for this:
The footer.php file is missing the wp_footer() function.
Check your theme’s footer.php file and make sure it contains the following code:
<?php wp_footer(); ?>
The jQuery library is being loaded again
If your theme files or another plugin are not using the WordPress standard method for loading the jQuery library this may result in jQuery being loaded a 2nd time after the plugin files have loaded, causing the plugin files to be overwritten.
Check the page source code to see if jQuery is loaded again after the plugin files and if so, remove from your theme files. For instructions on how to add jQuery correctly see FAQ – Adding jQuery to your theme files using wp_enqueue_script

















