Google analytics lost a week of reports

I’ve started a new website and I look at its analytics every day. Ever since I’ve started the app is not working properly, showing data differently from the web and sometimes even showing 0 accesses on an entire week

But today, I log in on my account and found that I have less than 50% accesses that yesterday

Poking around I find that the graphs only show the last 3 days

I select the date “this week”, it shows the last 3 days (17, 18 and 19), I select the date “this month”, it still shows the same 3 days I select the date “last week” doesn’t matter

I can see that the website is loading data, so it can’t be cache. What could possibly be going on?