Error on new form creation

Freshly installed 1.1.3 on wp 5.7.1 and when I access the Active Campaign tab while creating a form I’ve never saved I get this error, not a huge issue since it disappear as soon as I save the form for the first time

Notice: Undefined index: post in /var/www/htdocs/wp-content/plugins/wpop-accf/includes/accf7-settings.php on line 39 Call Stack: 0.0022 409496 1. {main}() /var/www/htdocs/wordpress/wp-admin/admin.php:0 6.1310 14157528 2. do_action($tag = 'contact_page_wpcf7-new') /var/www/htdocs/wordpress/wp-admin/admin.php:259 6.1310 14157904 3. WP_Hook->do_action($args = [0 => '']) /var/www/htdocs/wordpress/wp-includes/plugin.php:484 6.1310 14157904 4. WP_Hook->apply_filters($value = '', $args = [0 => '']) /var/www/htdocs/wordpress/wp-includes/class-wp-hook.php:316 6.1310 14159032 5. wpcf7_admin_add_new_page('') /var/www/htdocs/wordpress/wp-includes/class-wp-hook.php:292 6.1342 14160376 6. require_once('/var/www/htdocs/wp-content/plugins/contact-form-7/admin/edit-contact-form.php') /var/www/htdocs/wp-content/plugins/contact-form-7/admin/admin.php:483 6.1357 14178296 7. WPCF7_Editor->display() /var/www/htdocs/wp-content/plugins/contact-form-7/admin/edit-contact-form.php:272 6.1395 14195432 8. ACCF7_Active_Campaign_Settings->accf7_tab_callback(class WPCF7_ContactForm { private $id = NULL; private $name = NULL; private $title = 'Untitled'; private $locale = 'en_US'; private $properties = ['form' => ' Your name\n [text* your-name] \n\n Your email\n [email* your-email] \n\n Subject\n [text* your-subject] \n\n Your message (optional)\n [textarea your-message] \n\n[submit "Submit"]', 'mail' => [...], 'mail_2' => [...], 'messages' => [...], 'additional_settings' => NULL]; private $unit_tag = NULL; private $responses_count = 0; private $scanned_form_tags = [0 => class WPCF7_FormTag { ... }, 1 => class WPCF7_FormTag { ... }, 2 => class WPCF7_FormTag { ... }, 3 => class WPCF7_FormTag { ... }, 4 => class WPCF7_FormTag { ... }]; private $shortcode_atts = [] }) /var/www/htdocs/wp-content/plugins/contact-form-7/admin/includes/editor.php:41