Help! Error Creating default object from empty value After Updating

PHP Version 5.4.45
MySQL Version 5.5.42
WordPress Version 4.4
Gravity Forms Version 1.9.15
Website: seattlevaad.org

After updating my WordPress to the latest version, I have the following error on my site. This is the error:

Warning: Creating default object from empty value in /home2/seavaad/public_html/wp-content/plugins/gravity-forms-constant-contact/constantcontact.php on line 1146

This is the bit of code (starting with line 1145, the second line being 1146)

public function updateSettings($object = false) {
$settings = get_option(“gf_constantcontact_settings”);
$object->login = trim($settings[‘username’]);
$object->password = trim($settings[‘password’]);
$object->apiPath = str_replace(‘USERNAME’, ”, (string)$object->apiPath).rawurlencode(trim($settings[‘username’]));

$actionBy = apply_filters(‘gravity_forms_constant_contact_action_by’, ‘ACTION_BY_CONTACT’);
if($actionBy === ‘ACTION_BY_CONTACT’ || $actionBy === ‘ACTION_BY_CUSTOMER’) {
$this->actionBy = $actionBy;
} else {
$this->actionBy = ‘ACTION_BY_CUSTOMER’;
}

I have no idea how to fix this and Google isn’t helping me. Can anyone please help?

https://ww.wp.xz.cn/plugins/gravity-forms-constant-contact/