TYPO3 Core

If you have a siteconfig.yaml with e.g. a configuration for tt_address, BUT tt_address is not present in the TYPO3 system / tt_address is not installed and then try to call a non-existing page in the FE (e.g. "domain.tld/not_existing_page" you get the error message that the table tt_address does not exist.
This would be fine with "Debug"-Enabled and even desirable - but with Production/Live you should get the 404-page instead of the error message.

errorHandling:
  -
    errorCode: '404'
    errorHandler: Page
    errorContentSource: 't3://page?uid=30'
routeEnhancers:
  AddressPlugin:
    type: Extbase
    extension: TtAddress
    plugin: ListView
    routes:
      - routePath: '/{address_slug}'
        _controller: 'Address::show'
        _arguments:
          address_slug: address
    aspects:
      address_slug:
        type: PersistedAliasMapper
        tableName: tt_address
        routeFieldName: slug