Cache max-age

Cache max-age = time dependencies

Cache max-age is analogous to HTTP's Cache-Control header's max-age directive


Cache max-age provides a declarative way to create time-dependent caches.

Smart Cache

Drupal 8 provides a Smart Cache module that is recommended for websites of all sizes. It caches pages minus the personalized parts, and is therefore useful for all users (both anonymous & authenticated).

We can find this core module at: core/modules/smart_cache.

Other errors not specific to ERPAL for Service Providers

For other errors not specific to ERPAL for Service Providers, but general to Drupal, please visit the page at

"PDOException: SQLSTATE[42S22]: Column not found: 1054 Unknown column" error


You are trying to create a new ERPAL contact. Or add an address to an existing contact. When you click on "Save" button. ERPAL returns the following error message:


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