I have the WP User Frontend Free Version and purchased the Pro Version. But I can´t Activate the Pro version if the free Version is Activated. It appears the error message.
Plugin could not be activated because it triggered a fatal error.
Fatal error: Cannot redeclare wpuf_buffer_start() (previously declared in /home/diezwill/public_html/bgarta.info/wp-content/plugins/wp-user-frontend/wpuf-functions.php:11) in /home/diezwill/public_html/bgarta.info/wp-content/plugins/wp-user-frontend-pro/wpuf-functions.php on line 12