Hi @t.eggert
you have created a lot of certificates ( https://check-your-website.server-daten.de/?q=talkyoo.net#ct-logs ):
| Issuer | not before | not after | Domain names | LE-Duplicate | next LE |
|---|---|---|---|---|---|
| Let's Encrypt Authority X3 | 2019-07-10 | 2019-10-08 | www.talkyoo.net - 1 entries | duplicate nr. 5 | next Letsencrypt certificate: 2019-07-11 21:04:14 |
| Let's Encrypt Authority X3 | 2019-07-10 | 2019-10-08 | www.talkyoo.net - 1 entries | duplicate nr. 4 | |
| Let's Encrypt Authority X3 | 2019-07-10 | 2019-10-08 | www.talkyoo.net - 1 entries | duplicate nr. 3 | |
| Let's Encrypt Authority X3 | 2019-07-09 | 2019-10-07 | www.talkyoo.net - 1 entries | duplicate nr. 2 | |
| Let's Encrypt Authority X3 | 2019-07-04 | 2019-10-02 | www.talkyoo.net - 1 entries | duplicate nr. 1 | |
| Let's Encrypt Authority X3 | 2019-07-04 | 2019-10-02 | mail.talkyoo.net - 1 entries | duplicate nr. 1 | |
| Let's Encrypt Authority X3 | 2019-07-02 | 2019-09-30 | video.talkyoo.net - 1 entries | ||
| Let's Encrypt Authority X3 | 2019-07-01 | 2019-09-29 | see.talkyoo.net - 1 entries | ||
| Let's Encrypt Authority X3 | 2019-06-30 | 2019-09-28 | www.talkyoo.net - 1 entries | ||
| Let's Encrypt Authority X3 | 2019-06-29 | 2019-09-27 | www.talkyoo.net - 1 entries | next Letsencrypt certificate: |
Where are these? Why don't you use one of these?
Create one certificate, then use it 60 - 85 days, then create the next.