Which panel to choose for client base management?

Question

Web development

Help me choose a socket for the site where I will sell access to a certain database
. The logic is this. The client opens the site, registers and gets access to the panel. Where he can choose a tariff chooses it, pays and gets access to a specific product.
I want the most minimal and simple panel. So that the client can get information there how many days are left until the end of the subscription, and so on.
And I, as an administrator, so that I can manage this entire database. So that I can manually give the user access, remove it, block it, increase the access period, receive daily statistics about purchases, registrations, and so on. In a word, a complete admin panel.
The site itself is purely in html and I don’t use CSM there.