Critical error thrown

This morning, my site was dead. No auto-updates are active.

Managed to log in to rescue-mode in WordPress and see that UltraCommunity is the cause.

An error of type E_COMPILE_ERROR occured on row in the following file: ____omitted____\wp-content\plugins\ultra-community\engine\PostsType\MembersDirectoryPostType.php. Error reason: Namespace declaration statement has to be the very first statement or after any declare call in the script

Any suggestions? Any known conflicts?