How to find out the problem of recording rules

Hi ,team
I’m trying to extract mertics from loki logs by running recording rules and sending the metric to prometheus.
Now ,I’ve deploy a few of rules on the Loki POD, the rules seem to running well,but i can not query out the metric on prometheus page。 I want to know how can I find the problem 。

here is the ruler running log

here is the recording rule