Starting September 1, 2019, content packs are no longer supported on Power BI online. At this point, updates to existing content packs are no longer supported. For more information, see the annoucement on the Power BI blog: https://powerbi.microsoft.com/en-us/blog/announcing-power-bi-template-apps-general-availability
The following changes apply to the Power BI content packs that were available for install from powerbi.com and have no impact on any existing Power BI reports that you have installed or published on your own.
These content packs have been removed from powerbi.com and replaced with Power BI apps.
Any content packs that you have already installed continue to work. If you have previously installed a content pack and you want to update that content pack, you can download the .pbit files from either PartnerSource or CustomerSource between July 15, 2019 and September 1, 2019.