Just can´t get ssl integration working

Hello there,

I followed https://nextcloud.com/collaboraonline/ and now, I have my certificate installed. But still it doesn´t work. When I click on the app, I get the error

cURL error 60: SSL certificate problem: unable to get local issuer certificate

I have the intermediate cert of the CA I´m using and I tried to integrate it everywhere I know, including resources/config/ca-bundle.crt, but still - it doesn´t seem to get it correctly.

Can somebody please help me?

I was missing a certificate in beetwen. I got it solved with a ssl checker, I used: