Creating notices 'undefined property' 'undefined index' on acf-pro

Hello

Thank you for this plugin.

On acf-pro 5.3.10 it is currently producing a couple of php notices at the top of the Acf Fields Page:

Undefined property: acf_field_field_selector::$settings in /var/www/html/wp-content/plugins/acf-field-selector-field/acf-field_selector-v5.php on line 194
Undefined property: acf_field_field_selector::$settings in /var/www/html/wp-content/plugins/acf-field-selector-field/acf-field_selector-v5.php on line 195

And the following in the select field itself:

Notice: Undefined index: key in /var/www/html/wp-content/plugins/acf-field-selector-field/acf-field_selector-v5.php on line 284

Notice: Undefined index: key in /var/www/html/wp-content/plugins/acf-field-selector-field/acf-field_selector-v5.php on line 284

Notice: Undefined index: key in /var/www/html/wp-content/plugins/acf-field-selector-field/acf-field_selector-v5.php on line 284

Notice: Undefined index: key in /var/www/html/wp-content/plugins/acf-field-selector-field/acf-field_selector-v5.php on line 284

Notice: Undefined index: label in /var/www/html/wp-content/plugins/acf-field-selector-field/functions.php on line 96

Notice: Undefined index: label in /var/www/html/wp-content/plugins/acf-field-selector-field/functions.php on line 96

Notice: Undefined index: label in /var/www/html/wp-content/plugins/acf-field-selector-field/functions.php on line 96

Thank you.

https://www.ads-software.com/plugins/acf-field-selector-field/