[BlueOnyx:21732] big problem SSL let's encrypt websites on server

[PESJA A & A]

Hi All,
 
About one hour ago, one of my customers complained that his website was down. I detected that al of the SSL (Let's Encrypt) websites where down. 
I can't figured out what is wrong. But when I request or renew a new certificat for a server, it takes a very long time (more then 15 minutes). It look's like it's stuck.
 
Please help!
 
Kind regards,
 
PESJA
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