By default, the Bold Reports® Azure App Service will have an expired license key. You need to replace your Bold Reports® license key in the Bold Reports® Azure App Service by following these steps:
App Service editor
under the Development tool in the options as follows.
/site/wwwroot/app_data/reporting/configuration/boldlicense.txt
and replace your license key.Create Bold Reports® Azure App Service using ARM template
Upgrade Bold Reports® Azure App Service from v1.x to latest
Upgrade Syncfusion® Report Server Azure App Service from v4.x to latest