Uncaught Error: Class “VBORemindersHelper” not found

I am trying to use VikBooking on my localhost (XAMPP) on windows 11. After installing and activating the VikBooking plugin, this error keeps popping up anytime I want to configure or import sample data.

Fatal error: Uncaught Error: Class "VBORemindersHelper" not found in C:\xampp\htdocs\hotel\wp-content\plugins\vikbooking\admin\helpers\widgets\reminders.php:420 Stack trace: #0 C:\xampp\htdocs\hotel\wp-content\plugins\vikbooking\admin\helpers\admin_widgets.php(336): VikBookingAdminWidgetReminders->preload() #1 C:\xampp\htdocs\hotel\wp-content\plugins\vikbooking\admin\layouts\sidepanel\multitasking.php(32): VikBookingHelperAdminWidgets->getWidgetNames(true) #2 C:\xampp\htdocs\hotel\wp-content\plugins\vikbooking\libraries\adapter\layout\file.php(135): include('C:\xampp\htdocs...') #3 C:\xampp\htdocs\hotel\wp-content\plugins\vikbooking\libraries\adapter\layout\helper.php(69): JLayoutFile->render(Array) #4 C:\xampp\htdocs\hotel\wp-content\plugins\vikbooking\admin\helpers\helper.php(222): JLayoutHelper::render('sidepanel.multi...', Array) #5 C:\xampp\htdocs\hotel\wp-content\plugins\vikbooking\admin\controller.php(5443): VikBookingHelper::printHeader('1') #6 C:\xampp\htdocs\hotel\wp-content\plugins\vikbooking\libraries\adapter\mvc\controller.php(323): VikBookingController->prices() #7 C:\xampp\htdocs\hotel\wp-content\plugins\vikbooking\libraries\system\body.php(55): JController->execute('prices') #8 C:\xampp\htdocs\hotel\wp-content\plugins\vikbooking\vikbooking.php(196): VikBookingBody::process() #9 C:\xampp\htdocs\hotel\wp-includes\class-wp-hook.php(307): {closure}('') #10 C:\xampp\htdocs\hotel\wp-includes\class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array) #11 C:\xampp\htdocs\hotel\wp-includes\plugin.php(474): WP_Hook->do_action(Array) #12 C:\xampp\htdocs\hotel\wp-settings.php(587): do_action('init') #13 C:\xampp\htdocs\hotel\wp-config.php(96): require_once('C:\xampp\htdocs...') #14 C:\xampp\htdocs\hotel\wp-load.php(50): require_once('C:\xampp\htdocs...') #15 C:\xampp\htdocs\hotel\wp-admin\admin.php(34): require_once('C:\xampp\htdocs...') #16 {main} thrown in C:\xampp\htdocs\hotel\wp-content\plugins\vikbooking\admin\helpers\widgets\reminders.php on line 420