Second one is inspecting the Reporting Server Portal log, (RSPortal**.log) that resides in C:\Program Files\Microsoft Power BI Report Server\PBIRS\LogFiles
We again load this log file via Get Data –> Text/CSV and then choose to view all files, as it won’t see the .log extension otherwise. Choose the file and click on Edit.
The M query displays the changes I performed to format the data into something that can easily be worked with. Because of the stagnated output of the data lines, this will format the error and warning messages, with the rest of the rows only having the Information Message fulfilled, the rest of the columns will be null:
Read the whole thing.