Hi Dear,
Thanks for answer.
We do not plan to reinstall each 2 days, just reinstall one time and that’s all. If I understand the Rate Limites article, the limit is 5 / week (?).
The problem is that I don’t know at all where the certificate is on the VPS 
I don’t know how to backupt the file
Edit :
I found these files on the VPS :
