Ultimate Branding - Sitewide Text Changing Plugin Conflict

I get a fatal error when I try and install the Sitewide Text Changing Plugin. (Neither of these plugins are listed in the questions dropdown, so you will have to move it.)

Type Zend Compile-Time Error (E_COMPILE_ERROR)
Message Cannot redeclare set_swt_url() (previously declared in /home/xxxxxxxx/public_html/wp-content/plugins/ultimate-branding/ultimate-branding-files/modules/site-wide-text-change-files/sitewidetextincludes/classes/functions.php:8)
File /home/xxxxxxxx/public_html/wp-content/plugins/site-wide-text-change/sitewidetextincludes/classes/functions.php
Line 16
Type Description This type of error indicates that the PHP code is violating a restriction enforced by PHP. An example of such a violation is trying to use a reserved word for a class or function name.