using Cloudflare tunnel and setting the cloudflare generated certificates Crashed

[yukazakiri]

So I am running the 1panel in a server and using cloudflare tunnel to host it, And it worked really well, but here's the thing, i cannot enable the passkeys in the settings, so in order to enable it i have to bind my domain in it, and i did, but i still need to enable ssl https: for it to work,

but when using cloudflare tunnels, its already https by default as cloudflare handles it already but 1panel still needs configuration,

so i tried to and i used the imported certificates instead of the self-signed
and so i generated some certificates from cloduflare like the PEM and the public key

but after i saved that, i cannot access the server now as it always says

Bad gateway Error code 502

i need someone to help me here as its my first time encountering this