After the State of Emergency in Japan has been extended to the entire country, the anime was delayed. A new broadcast spot will be announced at the official website and Twitter account.

https://www.crunchyroll.com/anime-news/2020/04/17-1/pa-works-racing-tv-anime-appare-ranman-delayed-after-3rd-episode

P.A. Works Racing TV Anime Appare-Ranman! Delayed After 3rd EpisodeCrunchyroll