MODX can't edit files in assets in admin panel, how to fix?

Question

MODX

MODX there is no way to edit files in assets in the admin.
instead of the contents of the files - a gray screen,
caching is disabled,
there are no Cyrillic characters in the path, there are no
errors in the logs

Answer 1

set the value for locale in the system settings,
for example, specify en_US.UTF-8 there

Answer 2

Is the protocol not https? If the site is transferred to an https+ redirect in htaccess, then there will be nuances - resources are not visible, there is no access to the file manager, etc.