reporting/transactions returns '(400) bad request'

[WGmaker]

We use https://api.paypal.com/v1/reporting/transactions?start_date=yyyy-MM-ddThh:mm:ss-0000&end_date=yyyy-MM-ddThh:mm:ss-0000
to get a daily report of the last transactions. That worked fine until march 8 2020, after that it returns a '(400) bad request'. 
We did some experiments and it appears that our request range includes start date 2020-03-07 it returns transactions from that date and before. If the start_date is 2020-03-08 or later it returns 'bad request' 
Example: this one works:
https://api.paypal.com/v1/reporting/transactions?start_date=2020-03-07T09:48:49-0000&end_date=2020-0...
and this one returns bad request:
https://api.paypal.com/v1/reporting/transactions?start_date=2020-03-08T09:48:49-0000&end_date=2020-0...

We really hope that someone can help us out because our operation is very dependant on daily reporting of the transactions. 

[WGmaker]

I figured out the conditions for which this 'bad request' is thrown: When the start-date is after the 'last-refreshed-date' !! 
It appears that PayPal hasn't refreshed the account data for several days ... and counting . Last-refresh was 3 days ago !!

What's going on there ?? Corona?