Error when I activate the plugin

I successfully install v2.1.1, but when activating it I get the white blank page. And then I configure wp-config to show debug and get this error below:

Notice: wp_enqueue_style was called incorrectly. Scripts and styles should not be registered or enqueued until the wp_enqueue_scripts, admin_enqueue_scripts, or login_enqueue_scripts hooks. Please see Debugging in WordPress for more information. (This message was added in version 3.3.) in /var/www/vhosts/mydomain.com/wp-includes/functions.php on line 3792

Notice: wp_register_style was called incorrectly. Scripts and styles should not be registered or enqueued until the wp_enqueue_scripts, admin_enqueue_scripts, or login_enqueue_scripts hooks. Please see Debugging in WordPress for more information. (This message was added in version 3.3.) in /var/www/vhosts/mydomain.com/wp-includes/functions.php on line 3792

Notice: wp_enqueue_style was called incorrectly. Scripts and styles should not be registered or enqueued until the wp_enqueue_scripts, admin_enqueue_scripts, or login_enqueue_scripts hooks. Please see Debugging in WordPress for more information. (This message was added in version 3.3.) in /var/www/vhosts/mydomain.com/wp-includes/functions.php on line 3792

But when I Install v2.0.6 it’s working perfectly.
I need the updated this plugin.

Please help me to solve this kind of errors and make the plugin useful.
Thanks
Ibnu

https://ww.wp.xz.cn/plugins/veritrans-woocommerce-payment-gateway/