Data export

I have shared some Reports (created in Power BI Desktop) few weeks ago. The users opened the reports trough Power BI (website). Until now they had the possibility to export data to CSV as they clicked to "..." on the top right side of the report. But now one day to the other this possibility is disappered. I do not know what should I do that the user get back again the possibility extract data to csv in Power BI (webpage). Could somebody help me. Thank you for your help.