Doesn’t work

It doesn’t work. It also broke my site. When I tried their support page (after logging in), I got the following message
You do not have permission to submit a question.

I’ve just noticed they gave the 5 stars to themselves!

The free version of unlimited-background-slider worked ok but the paid version doesn’t.

I cannot load any images into unlimited-background-slider. When I click the “Add Image” button, only a blank screen appears.

Also, when I try to log-on again after exiting wordpress, this appears:

unlimited-background-slider
Warning: Cannot modify header information – headers already sent by (output started at /home/premiumr/public_html/TEST3/wp-content/plugins/unlimited-background-slider/unlimited-background-slider.php:102) in /home/premiumr/public_html/TEST3/wp-includes/pluggable.php on line 914

Warning: Cannot modify header information – headers already sent by (output started at /home/premiumr/public_html/TEST3/wp-content/plugins/unlimited-background-slider/unlimited-background-slider.php:102) in /home/premiumr/public_html/TEST3/wp-includes/pluggable.php on line 915

Warning: Cannot modify header information – headers already sent by (output started at /home/premiumr/public_html/TEST3/wp-content/plugins/unlimited-background-slider/unlimited-background-slider.php:102) in /home/premiumr/public_html/TEST3/wp-includes/pluggable.php on line 916

Warning: Cannot modify header information – headers already sent by (output started at /home/premiumr/public_html/TEST3/wp-content/plugins/unlimited-background-slider/unlimited-background-slider.php:102) in /home/premiumr/public_html/TEST3/wp-includes/pluggable.php on line 917

Warning: Cannot modify header information – headers already sent by (output started at /home/premiumr/public_html/TEST3/wp-content/plugins/unlimited-background-slider/unlimited-background-slider.php:102) in /home/premiumr/public_html/TEST3/wp-includes/pluggable.php on line 918

Warning: Cannot modify header information – headers already sent by (output started at /home/premiumr/public_html/TEST3/wp-content/plugins/unlimited-background-slider/unlimited-background-slider.php:102) in /home/premiumr/public_html/TEST3/wp-includes/pluggable.php on line 919

Warning: Cannot modify header information – headers already sent by (output started at /home/premiumr/public_html/TEST3/wp-content/plugins/unlimited-background-slider/unlimited-background-slider.php:102) in /home/premiumr/public_html/TEST3/wp-includes/pluggable.php on line 922

Warning: Cannot modify header information – headers already sent by (output started at /home/premiumr/public_html/TEST3/wp-content/plugins/unlimited-background-slider/unlimited-background-slider.php:102) in /home/premiumr/public_html/TEST3/wp-includes/pluggable.php on line 923

Warning: Cannot modify header information – headers already sent by (output started at /home/premiumr/public_html/TEST3/wp-content/plugins/unlimited-background-slider/unlimited-background-slider.php:102) in /home/premiumr/public_html/TEST3/wp-includes/pluggable.php on line 924

Warning: Cannot modify header information – headers already sent by (output started at /home/premiumr/public_html/TEST3/wp-content/plugins/unlimited-background-slider/unlimited-background-slider.php:102) in /home/premiumr/public_html/TEST3/wp-includes/pluggable.php on line 925

Warning: Cannot modify header information – headers already sent by (output started at /home/premiumr/public_html/TEST3/wp-content/plugins/unlimited-background-slider/unlimited-background-slider.php:102) in /home/premiumr/public_html/TEST3/wp-includes/pluggable.php on line 928

Warning: Cannot modify header information – headers already sent by (output started at /home/premiumr/public_html/TEST3/wp-content/plugins/unlimited-background-slider/unlimited-background-slider.php:102) in /home/premiumr/public_html/TEST3/wp-includes/pluggable.php on line 929

Warning: Cannot modify header information – headers already sent by (output started at /home/premiumr/public_html/TEST3/wp-content/plugins/unlimited-background-slider/unlimited-background-slider.php:102) in /home/premiumr/public_html/TEST3/wp-includes/pluggable.php on line 930

Warning: Cannot modify header information – headers already sent by (output started at /home/premiumr/public_html/TEST3/wp-content/plugins/unlimited-background-slider/unlimited-background-slider.php:102) in /home/premiumr/public_html/TEST3/wp-includes/pluggable.php on line 931

Warning: Cannot modify header information – headers already sent by (output started at /home/premiumr/public_html/TEST3/wp-content/plugins/unlimited-background-slider/unlimited-background-slider.php:102) in /home/premiumr/public_html/TEST3/wp-includes/pluggable.php on line 892

Warning: Cannot modify header information – headers already sent by (output started at /home/premiumr/public_html/TEST3/wp-content/plugins/unlimited-background-slider/unlimited-background-slider.php:102) in /home/premiumr/public_html/TEST3/wp-includes/pluggable.php on line 893

Warning: Cannot modify header information – headers already sent by (output started at /home/premiumr/public_html/TEST3/wp-content/plugins/unlimited-background-slider/unlimited-background-slider.php:102) in /home/premiumr/public_html/TEST3/wp-includes/pluggable.php on line 894

Warning: Cannot modify header information – headers already sent by (output started at /home/premiumr/public_html/TEST3/wp-content/plugins/unlimited-background-slider/unlimited-background-slider.php:102) in /home/premiumr/public_html/TEST3/wp-includes/pluggable.php on line 1174