I'm slowly loosing sats, how can I track the cause?

Hi, I just opened a node 037a1502ae6d43a959f49f5e1063d133e69fa33d6ae9256db7ecfffb684f5472cb@shoez7yvkbkgg66a2n3qog3mo2k4qutvxw7z74czsuhkz4dsk4jpqxyd.onion:9735
It is slowly losing sats (maybe 4 per day). I’m new with all those tools. How can I track the cause of this leak? It doesn’t show on my node transactions.