Error in UserCountry/functions.php

Hi,

since the update to Matomo 4.0 I am having problems, also with the newer versions up to 4.1.1. That being said, since then, WP-Matamo throws errors when I hit F5. The most common error is:

Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 8589928568 bytes) in /var/www/web9/htdocs/piwik.linuxnews.de/plugins/UserCountry/functions.php on line 164

Line 164 is: static $regionNames;

This looks like a memory leak to me, but I am no expert. Also I have no idea how this is connected to the errors I see in Matamo itself. Any help is highly appreciated.

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