Plugin could not be activated because it triggered a fatal error.

[orguetta]

Plugin could not be activated because it triggered a fatal error.
Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, class Soapberry\Soapberry does not have a method "activate" in /var/www/html/wp-includes/class-wp-hook.php:308 Stack trace: #0 /var/www/html/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters('', Array) #1 /var/www/html/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #2 /var/www/html/wp-admin/plugins.php(194): do_action('activate_soapbe...') #3 {main} thrown in /var/www/html/wp-includes/class-wp-hook.php on line 308