<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Store:etc/config.xsd">
    <default>
        <system>
            <media_storage_configuration>
                <allowed_resources>
                    <outeredge_image_folder>outeredge</outeredge_image_folder>
                </allowed_resources>
            </media_storage_configuration>
        </system>
    </default>
</config>

Add outeredge folder to media allowed_resources
Add outeredge folder to media allowed_resources