Cannot Generate Dummy Posts

Getting following error while creating new posts:

[27-Aug-2021 01:47:21 UTC] PHP Fatal error:  Uncaught TypeError: implode(): Argument #2 ($array) must be of type ?array, string given in W:\headlesswp.local\wp-content\plugins\wp-dummy-content-generator\vendor\fzaninotto\faker\src\Faker\Provider\Lorem.php:95
Stack trace:
#0 W:\headlesswp.local\wp-content\plugins\wp-dummy-content-generator\vendor\fzaninotto\faker\src\Faker\Provider\Lorem.php(95): implode(Array, ' ')
#1 W:\headlesswp.local\wp-content\plugins\wp-dummy-content-generator\vendor\fzaninotto\faker\src\Faker\Provider\Lorem.php(179): Faker\Provider\Lorem::sentence()
#2 [internal function]: Faker\Provider\Lorem::text(40)
#3 W:\headlesswp.local\wp-content\plugins\wp-dummy-content-generator\vendor\fzaninotto\faker\src\Faker\Generator.php(222): call_user_func_array(Array, Array)
#4 W:\headlesswp.local\wp-content\plugins\wp-dummy-content-generator\vendor\fzaninotto\faker\src\Faker\Generator.php(279): Faker\Generator->format('text', Array)
#5 W:\headlesswp.local\wp-content\plugins\wp-dummy-content-generator\includes\functions-posts.php(42): Faker\Generator->__call('text', Array)
#6 W:\headlesswp.local\wp-content\plugins\wp-dummy-content-generator\includes\functions-posts.php(116): wp_dummy_content_generatorGeneratePosts('post', 'on', '2021-01-01', '2021-08-27')
#7 W:\headlesswp.local\wp-includes\class-wp-hook.php(303): wp_dummy_content_generatorAjaxGenPosts('')
#8 W:\headlesswp.local\wp-includes\class-wp-hook.php(327): WP_Hook->apply_filters('', Array)
#9 W:\headlesswp.local\wp-includes\plugin.php(470): WP_Hook->do_action(Array)
#10 W:\headlesswp.local\wp-admin\admin-ajax.php(187): do_action('wp_ajax_wp_dumm...')
#11 {main}
  thrown in W:\headlesswp.local\wp-content\plugins\wp-dummy-content-generator\vendor\fzaninotto\faker\src\Faker\Provider\Lorem.php on line 95

Environment:

PHP Version: 8.0.9
Wordpress version: Version 5.8
Plugin Version: Version 1.1.2`