Yes , exactly
Thanks for advance for your assistance
i choose (custom block - media -custom menu link - content - taxononmy term)
when choose in content , some content type prevent to export like landing page - basic page
and run drush content:export --all-content
or drush content:export
give error
when i allowed all entities type , the drush runs succssfully
but when choose specific entity type to export give me that error
[error] Message: The export couldn't be completed since it contains disallowed content.