We have faced an issue where the Dev team is not able to view their reports. The installations were all done by them and we had to jump to see what is wrong. We doubt they installed the Evaluation version and the 180 days are over. The error states thats the issue however, we still want to check the edition installed.
We were able to find the Version from registry which was Version 1.4.6969.7395 (Build 15.0.1102.235)
How to find the edition of Power BI Report Server?