Fatal error plugin page multisite

Very often we get a fatal error on the plugin overview page caused by MultiSafepay.
Not always, but every other day.

The error is as follows:
Uncaught TypeError: version_compare(): Argument #2 ($version2) must be of type string, null given in /httpdocs/wp-content/plugins/multisafepay/src/Utils/UpgradeNotices.php:17

The problem is that for some reason $plugin['new_version'] is not always available and then the fatal error occurs.

public function show_multisite_upgrade_notice( $file, $plugin ) {
        if ( version_compare( $plugin['Version'], $plugin['new_version'], '<' ) ) {

Can you add a condition that first of all checks if $plugin['new_version'] is available.

Thank you.