{% load static %}
{{ filename }}
        Check the following:
manage.py collectstatic was run during the most recent upgrade. This installs the most recent
                iteration of each static file into the static root path.
            STATIC_ROOT path.
                Refer to the installation
                documentation for further guidance.
                    STATIC_ROOT: {{ settings.STATIC_ROOT }}STATIC_URL: {{ settings.STATIC_URL }}{{ filename }} exists in the static root directory and is readable by the HTTP process.
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