[NSFW] error, I get news: undefined index: title in

Hi, when I want to register, a message appears after the body. I don’t know much about the code to make the change. The message is as follows:

Notice
: Undefined index: title in
/home/d176493/public_html/wp-content/plugins/creame-whatsapp-me/includes/class-joinchat-util.php
on line
281

The page I need help with: [log in to see the link]

 

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