Object reference not set to an instance of an object

Hi v-qiuyu-msft ,

When ever I open an existing file, receiving the error message: Object reference not set to an instance of an object. I have tried updating the windows, uninstalled and installed the Power BI Desktop. But still the issue persists.  But where as my friends are able to access the same file.  I have downloaded the same file which they are able to access from the service and tried accessing it. But still unable to access the files from yesterday.  I have even reported the issue also.