Non-static method Warehouse_Popups_Woocommerce_Public::client_data() should not

Hi there.

I’m receiving below error if I activate the plugin:

Deprecated: Non-static method Warehouse_Popups_Woocommerce_Public::client_data() should not be called statically in /home/xxx/public_html/wp-content/plugins/warehouse-popups-woocommerce/public/class-warehouse-popups-woocommerce-public.php on line 689

Deprecated: Non-static method Warehouse_Popups_Woocommerce_Public::get_geoip_data() should not be called statically in /home/xxx/public_html/wp-content/plugins/warehouse-popups-woocommerce/public/class-warehouse-popups-woocommerce-public.php on line 91

Deprecated: Non-static method Warehouse_Popups_Woocommerce_Public::get_client_ip() should not be called statically in /home/xxx/public_html/wp-content/plugins/warehouse-popups-woocommerce/public/class-warehouse-popups-woocommerce-public.php on line 1362

Deprecated: Non-static method Warehouse_Popups_Woocommerce_Public::client_data() should not be called statically in /home/xxx/public_html/wp-content/plugins/warehouse-popups-woocommerce/public/class-warehouse-popups-woocommerce-public.php on line 689

Deprecated: Non-static method Warehouse_Popups_Woocommerce_Public::get_geoip_data() should not be called statically in /home/xxx/public_html/wp-content/plugins/warehouse-popups-woocommerce/public/class-warehouse-popups-woocommerce-public.php on line 91

Deprecated: Non-static method Warehouse_Popups_Woocommerce_Public::get_client_ip() should not be called statically in /home/xxx/public_html/wp-content/plugins/warehouse-popups-woocommerce/public/class-warehouse-popups-woocommerce-public.php on line 1362

Warning: file_get_contents(https://www.geoplugin.net/json.gp?ip=192.96.203.70): failed to open stream: HTTP request failed! HTTP/1.1 403 Forbidden in /home/xxx/public_html/wp-content/plugins/warehouse-popups-woocommerce/public/class-warehouse-popups-woocommerce-public.php on line 384

Notice: Trying to access array offset on value of type null in /home/xxxx/public_html/wp-content/plugins/warehouse-popups-woocommerce/public/class-warehouse-popups-woocommerce-public.php on line 386

WooCommerce Version 4.3.3.

I cannot update the Woo version due to some incompatibility with the theme and other plugins.