https certificate issue on Android

Question

I have a macro made with Macrodroid which I use to make Get http requests. This macro obtains day color electrical contract (in France)

Get https://www.api-couleur-tempo.fr/api/jourTempo/today

this macro worked very well but now when it runs I have an error:

"java.security.cert.CertPathValidatorException: trust anchor for certification path not found"

I thought it could be du to an change on the server, but when I use this Get with "Postman" it works well! so it seems it's a problem from Android but I don't know what to do...

I tried it on an other android phone and it works too so I probably have something to do on my phone, but I don't know what!

Can someone help me?

here is Postman request

And here my Macrodroid macro

outdated question because it works now...I don't know why !