[CleanTalk] Scan doesn’t work

Hello
I use the CleanTalk plugin and the scan function works manually but not when automated.
Message : “Website last scan was performed on Jan 06 2021 16:34:57, 18593 files were scanned. Next automatic scan scheduled to Jan 07 2021 16:34:09.”
And web are January 08 ??

And when I try to set an hour in the Settings section, the plugin crashes:
Une erreur de type E_ERROR a été causée dans la ligne 2500 du fichier /home/sites/www.abondance.com/wp-content/plugins/security-malware-firewall/inc/spbc-settings.php. Message d’erreur : Uncaught Error: Class ‘Cleantalk\Variables\Post’ not found in /home/sites/www.abondance.com/wp-content/plugins/security-malware-firewall/inc/spbc-settings.php:2500
Stack trace:
#0 /home/sites/www.abondance.com/wp-includes/class-wp-hook.php(289): spbc_sanitize_settings(Array)
#1 /home/sites/www.abondance.com/wp-includes/plugin.php(212): WP_Hook->apply_filters(Array, Array)
#2 /home/sites/www.abondance.com/wp-includes/formatting.php(4906): apply_filters(‘sanitize_option…’, Array, ‘spbc_settings’, Array)
#3 /home/sites/www.abondance.com/wp-includes/option.php(369): sanitize_option(‘spbc_settings’, Array)
#4 /home/sites/www.abondance.com/wp-admin/options.php(314): update_option(‘spbc_settings’, Array)
#5 {main}
thrown

Can you help me?
Thank you!