Change the path for the certs.

Config/Prosody/etc/conf.avail/example.com.cfg.lua

@@ -8,8 +8,8 @@ VirtualHost "example.com"
 	-- Note that old-style SSL on port 5223 only supports one certificate, and will always
 	-- use the global one.
 	--ssl = {
-	--	key = "/etc/prosody/certs/example.com/privkey.pem";
-	--	certificate = "/etc/prosody/certs/example.com/fullchain.pem";
+	--	key = "/etc/letsencrypt/live/example.com/privkey.pem";
+	--	certificate = "/etc/letsencrypt/live/example.com/fullchain.pem";
 	--	}
 
 ------ Components ------