Error after updating to 9.2.15

Hi. After updating the plugin from version 9.2.14 to version 9.2.15, php errors occurred.

Fatal error: Uncaught ArgumentCountError: Too few arguments to function SQ_Models_Frontend::getBuffer(), 1 passed in C:\xampp\htdocs\lux\wp-includes\class-wp-hook.php on line 288 and exactly 2 expected in C:\xampp\htdocs\lux\wp-content\plugins\squirrly-seo\models\Frontend.php:56
Stack trace:
#0 C:\xampp\htdocs\lux\wp-includes\class-wp-hook.php(288): SQ_Models_Frontend->getBuffer(”)
#1 C:\xampp\htdocs\lux\wp-includes\class-wp-hook.php(312): WP_Hook->apply_filters(NULL, Array)
#2 C:\xampp\htdocs\lux\wp-includes\plugin.php(478): WP_Hook->do_action(Array)
#3 C:\xampp\htdocs\lux\wp-includes\load.php(947): do_action(‘shutdown’)
#4 [internal function]: shutdown_action_hook()
#5 {main} thrown in C:\xampp\htdocs\lux\wp-content\plugins\squirrly-seo\models\Frontend.php on line 56