WordPress 4.9.5 not supported

Hello,
I cannot user the plugin with the latest WordPress version 4.9.5.

While activating it i get the following message:
Plugin could not be activated because it triggered a fatal error.

Fatal error: Can’t use function return value in write context in /home/~/wp-content/plugins/woo-additional-terms/includes/back-end.php on line 18.

Do you plan to support the latest WordPress version?

Cheers,
Jakub