product error

Notice: Undefined offset: 1 in /customers/3/6/8/kaial.com/httpd.www/wp-content/plugins/b2bking-3620/public/class-b2bking-public.php on line 1204 Notice: Undefined offset: 1 in /customers/3/6/8/kaial.com/httpd.www/wp-content/plugins/b2bking-3620/public/class-b2bking-public.php on line 1204

i am getting this error on the product

i always keeps getting some error from your plugin

i dont want this to happen