Anybody gets 'too many requests' error suddenly in data download?

Hi there, yesterday I configured a daily report of my installation based on kwh and log data using vrm api data-download. Idea is that I download these 2 files each night at 3 am for the day before and parse them using python and R. Everything worked fine until once of a sudden I got these errors:
“success”: false,
“errors”: “Too many requests. Please try again in a few minutes”,
“error_code”: null
Waiting a few minutes or hours doesn’t work. Seems I’m blacklisted. Anybody experiences the same problems?
best regards, Han

automagically my cronjob started giving results again, solved…