Thank you for your answer, the hosting has answered this :
After verification, it is not an error related to our server in your case. Indeed, the latter has not been modified and does not encounter any disturbances.
This is a common error that can have several causes, here is an external link about it: https:
https://stackoverflow.com/questions/58215104/whats-the-neterr-http2-protocol-error-about
Right now, you can try the following actions:
– temporarily deactivate the CDN,
– check your scripts and modules in place.
I just purged the CDN to see if that changes anything.
