Error in banner background - using Revolution Slider

An error displays in the background of my banner "Warning: trim() expects parameter 1 to be string array…/content/41/12492241/html/wp-content/plugins/revslider/includes/output.class.php on line 2905.(Can be seen here [www.qualitavita.com], everytime you manually change the banner)

How can I fix this?

Thanks,

Fernando

I think it’s better to contact the plugin author about this.

1 Like

thanks