What does it mean at facebook when you see this,This message failed to send. Click to send again,in red letter?

[Preacher with Priors]

in the message place where you have private messging with someone this started to come up and the pother peron thought i had left withuit a good bye. do you know what it means? becuase I do not think any actual people are employed at facebook never been able to veer get anyt response.

[вοοм!]

It means that there was an error sending your message.
Something interfered between you and the facebook server so they didn't receive your message.
Maybe your internet went off while sending the text or something else. Try refreshing the page.

[Jessica]

Its probably your wi fi messing up