As title describes. Error message from log: [Thu Dec 02 16:15:06.872219 2021] [fastcgi:error] [pid 29591:tid 140568843777792] [client 2a02:a420:4f:731a:48de:8c82:fa8d:ad69:20342] FastCGI: server "/var/run/php80-cgi/php-cgi" stderr: PHP message: PHP Warning: Undefined array key "" in /www/wp-content/plugins/easy-appointments-connect/src/twilio_logic.php on line 196