Contact Form Doesnt sent

Hello, thank you. On both my sites I am getting an orange message but with different error. See below.

I have disabled akismet, caching and there are no IP addresses in the wordpress blacklist… still no luck on either. The forms used to work several months ago so I am not sure what has changed

“There was an error trying to send your message. Please try again later.”
“Failed to send your message. Please try later or contact the administrator by another method.”