Initialization error for tvb web gui

When using tvb web on a fresh computer (with all tvb related files deleted), but having a correct python 3 environment for tvb, after confirming settings on tvb web page, if you try to login with default credentials (admin/pass), you will receive an error of type incorrect credentials.

Bug reproduction steps:

• delete .tvb.configuration file from your user
• delete TVB folder completely from your user
• run tvb web from pycharm
• confirm the settings
• now, browser will say that tvb web will be restarted but in pycharm you can see that the process is ended, and no action will be performed
• run tvb web from pycharm manually
• in the login page enter the credentials (admin/pass)
• when click on login you will receive an error of type incorrect credentials.