Help with verifying AdSense account

[WhatsANinja]

Hello guys, I've had my website since around March. I haven't been consistent in keeping it active, but since its creation, it has more than 20 articles. I've sent the request about three times but haven't received a response. Yesterday, I logged into Adsense after about 1-2 months of not checking, and this is what appeared:

What could I do?