Hello,
I've installed the Theme Clean which is released today on a test database which was already installed and configured with website active.
After installation the website is no longer readable, layout is completely broken.
Do we need to uninstall something before we install the Theme Clean addon?
@Stephen, thnx, that did it. Seems that email I've received was not clear enough for me. Mentioning https://github.com/odoo/odoo/issues/4604 is the way to go...