Only approved, rejected or paused templates can be edited. Create a new template instead.
Meta only lets you edit templates that are approved, rejected or paused. A disabled template, or one being deleted, can't be changed.
Create a new template with improved wording.
Point any automations that used the old template at the new one.
Still stuck? Send AVX-3161 to hello@theavoxai.com along with what you were doing when it happened.