Going too further back in dates gives 0 output

Hi,
I was trying to use your actor but it gives 0 output when I tried to get data before an earlier date - for example 2021-June-01.  (I set Tweets older than (optional) as 2021-06-01). 
Is there a limit how long back we can go, or is there a limit on how many times the scraper can scroll down?

Any advice on how to get data from earlier dates?

Thanks a lot.