Have u tried downgrading let's encrypt?
plesk bin extension --install-url https://ext.plesk.com/packages/f6847e61-33a7-4104-8dc9-d26a0183a8dd-letsencrypt/download?2.9.0-611
I confirm it was the latest update of let's encrypt. I downgraded it from the cli and everything works.
plesk bin extension --install-url https://ext.plesk.com/packages/f6847e61-33a7-4104-8dc9-d26a0183a8dd-letsencrypt/download?2.9.0-611