Errors in log and spam mails

Hello,

We get these errors in the last 4 days and since then we get lots of spam emails.

Declaration of CleantalkUpgraderSkin_Deprecated::feedback($string) should be compatible with WP_Upgrader_Skin::feedback($string, …$args) in ***/wp-content/plugins/cleantalk-spam-protect/lib/CleantalkUpgraderSkin_Deprecated.php on line 44
PHP Warning: Declaration of CleantalkUpgraderSkin_Deprecated::feedback($string) should be compatible with WP_Upgrader_Skin::feedback($string, …$args) in ***/wp-content/plugins/cleantalk-spam-protect/lib/CleantalkUpgraderSkin_Deprecated.php on line 44
array (
‘show_notice’ => 0,
‘renew’ => 0,
‘trial’ => 0,
‘user_token’ => ‘***’,
‘spam_count’ => 222,
‘moderate_ip’ => 0,
‘moderate’ => 1,
‘valid’ => 1,
‘show_review’ => 0,
‘service_id’ => ***,
‘license_trial’ => 0,
‘account_name_ob’ => ‘***’,
‘ip_license’ => NULL,
)

Plugin, theme and wordpress are updated and we run PHP 7.2

The page I need help with: [log in to see the link]