@Tobias_Wochinger, Thank you for your reply. We were able to solve it earlier. There were several issues during the installation, due to our network proxy settings .
Sorry, I dont have the logs now.
But I think this particular issue had something to do with the ownership of the /etc/rasa/db directory. Somehow, during our installation, this owner was root initially. I think it later started working when the ownership of /etc/rasa/db was set to 1001.
That is the best I could remember. 