htmlize generate css

[nm3000a]

Thank you for creating the latte theme.

I am generating the html version of an org-file.
The command org-html-htmlize-generate-css fails with the following message

Invalid-face: markdown-blockquote-face 

I have tried changing the theme to leuven and it generates the css in a new buffer.

Catppuccin theme is the latest version.
Using it like this:

(use-package catppuccin-theme
  :ensure t)
(setq catppuccin-flavor 'latte)
(catppuccin-reload)

Emacs version: 30.0.50
org-mode: 9.6.9

Again, Thank you for your help.