Twig errors with custom template on Chamilo upgrade
If you use Chamilo and decided to develop your own template, you might be faced with an issue while upgrading from Chamilo 1.11.2 (or below) to 1.11.4 (or above).
The issue will usually be reflected by either of these:
![This image has been remo</body></html> Image removed.](/core/misc/icons/e32700/error.svg)
- a white page
- an error message about Twig
- if you have xdebug installed and showing error messages, something like this: