I have this error message and can´t update the plugin.
Have you got a solutiion for this. I saw some of booster customers have the same problem.
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Fatal error: Uncaught Error: Call to a member function get_base_country() on null
in /wp-content/plugins/booster-plus-for-woocommerce/includes/functions/wcj-functions-country.php on line 157
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best regards
Doro
Could you please download the latest version of the plugin and update it manually? After updating, please confirm whether your fix has been included or not.