**Describe the bug** I was going through the steps outlined here - https://ontoportal.github.io/documentation/administration/steps/branding-customizations for brand customisation. I have made the changes and run the apply steps here - https://ontoportal.github.io/documentation/administration/steps/advanced_configuration Then when I try to login to the UI I get the ""We're sorry but something has gone wrong. We have been notified of this error." Of note, the REST API seems to work, and I can submit a simple request **To Reproduce** Steps to reproduce the behavior: 1. Follow the branding customisation guide. **Expected behavior** Branding is applied and the customisations are visible **Screenshots** <img width="1924" alt="Screenshot 2023-05-17 131802" src="https://github.com/ontoportal/ontoportal-project/assets/15032396/421534d9-ce77-46b1-82f8-daf411c00af0">