Error message when activating

I get the following error when I activate the Fundraising plugin:

Admin

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 init hooks. Please see Debugging in WordPress for more information. (This message was added in version 3.3.) in /var/www/vhosts/moonworkspublishing.com/httpdocs/wp-includes/functions.php on line 3587

Notice: wp_register_script was called incorrectly. Scripts and styles should not be registered or enqueued until the wp_enqueue_scripts, admin_enqueue_scripts, or init hooks. Please see Debugging in WordPress for more information. (This message was added in version 3.3.) in /var/www/vhosts/moonworkspublishing.com/httpdocs/wp-includes/functions.php on line 3587

Website

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 init hooks. Please see Debugging in WordPress for more information. (This message was added in version 3.3.) in /var/www/vhosts/moonworkspublishing.com/httpdocs/wp-includes/functions.php on line 3587

Notice: wp_register_script was called incorrectly. Scripts and styles should not be registered or enqueued until the wp_enqueue_scripts, admin_enqueue_scripts, or init hooks. Please see Debugging in WordPress for more information. (This message was added in version 3.3.) in /var/www/vhosts/moonworkspublishing.com/httpdocs/wp-includes/functions.php on line 3587

Notice: Undefined index: inject_menu in /var/www/vhosts/moonworkspublishing.com/httpdocs/wp-content/plugins/fundraising/fundraiser.php on line 159