Fatal error: Uncaught Error: Class ‘WpSecurityAuditLog’ not found

I installed this plugin on my site to test. After that, when the user placed the order, an error was printed on the page that appears after clicking the Place Order button. So I deactivated this plugin. After that, the error disappeared, but the following error occurred when the user clicked on the download link from the order after purchasing the downloadable product. I completely removed the plugin and cleared the site cache, but it still remains. Users should see a download link for the product on the s3, but they won’t go to that page, because this error has occurred. How can I stop this now? This is so urgent.

Error message:

Fatal error: Uncaught Error: Class 'WpSecurityAuditLog' not found
in /home/admin/public_html/academy/wp-content/plugins/wp-activity-log-for-woocommerce/includes/wsal-functions.php on line 42
Call stack:
wsal_woocommerce_extension_detect_file_download()
wp-includes/class-wp-hook.php:307
WP_Hook::apply_filters()
wp-includes/class-wp-hook.php:331
WP_Hook::do_action()
wp-includes/plugin.php:474
do_action()
wp-content/plugins/woocommerce/includes/class-wc-download-handler.php:120
WC_Download_Handler::download_product()
wp-includes/class-wp-hook.php:307
WP_Hook::apply_filters()
wp-includes/class-wp-hook.php:331
WP_Hook::do_action()
wp-includes/plugin.php:474
do_action()
wp-settings.php:587
require_once()
wp-config.php:90
require_once()
wp-load.php:50
require_once()
wp-blog-header.php:13
require()
index.php:17
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