When I try to install cloudflare origin certificate SSL for *.yourdomain.tld it shows the following
Error: SSL intermediate chain is not valid
I tried both PEM and PKCS#7 formats and SSL Certificate Authority / Intermediate was added
It’s a bug that will be fixed in next Hestia version.
If you want to fix it now:
cd /usr/local/hestia/func/
mv domain.sh domain.sh.backup
wget https://raw.githubusercontent.com/sahsanu/hestiacp/c86b04be7dfe1cca56825f81dc4c3477436b7233/func/domain.sh
And try again.