[Airbrake] [Production] Missing template pages/404 with {:locale=>[:en], :formats=>[:json], :variants=>[], :handlers=>[:raw, :erb, :html, :builder, :ruby, :coffee, :jbuilder]}. Searched in: * "/app/app/views" * "/app/vendor/bundle/ruby/2.6.0/gems/a...

**Airbrake error:** [#5960](https://herokuapp16263207herokucom.airbrake.io/projects/122010/groups/2686036745720015960)
**Airbrake project:** harrowcn-production

**Error type:** `ActionView::MissingTemplate`
**Error message:** `` Missing template pages/404 with {:locale=>[:en], :formats=>[:json], :variants=>[], :handlers=>[:raw, :erb, :html, :builder, :ruby, :coffee, :jbuilder]}. Searched in: * "/app/app/views" * "/app/vendor/bundle/ruby/2.6.0/gems/administrate-0.12.0/app/views" * "/app/vendor/bundle/ruby/2.6.0/gems/kaminari-core-1.1.1/app/views" * "/app/vendor/bundle/ruby/2.6.0/gems/twitter-bootstrap-rails-3.2.2/app/views" * "/app/vendor/bundle/ruby/2.6.0/gems/devise_invitable-2.0.1/app/views" * "/app/ven... ``
**Where:** `volunteer_ops#index`
**Occurred at:** Feb 24, 2020 00:35:30 UTC
**First seen at:** Feb 24, 2020 00:35:30 UTC
**Occurrences:** 0 (0 since last deploy on ``)
**Severity:** `error`

**URL:** [https://www.harrowcn.org.uk/volunteer_ops.json](https://www.harrowcn.org.uk/volunteer_ops.json)
**File:** `/GEM_ROOT/gems/actionview-5.2.4.1/lib/action_view/path_set.rb`

**Backtrace:**
```
/GEM_ROOT/gems/actionview-5.2.4.1/lib/action_view/path_set.rb:48:in find
/GEM_ROOT/gems/actionview-5.2.4.1/lib/action_view/lookup_context.rb:116:in find
/GEM_ROOT/gems/actionview-5.2.4.1/lib/action_view/renderer/abstract_renderer.rb:20:in find_template
/GEM_ROOT/gems/actionview-5.2.4.1/lib/action_view/renderer/template_renderer.rb:40:in determine_template
...
Caused by ActionController::UnknownFormat: VolunteerOpsController#index is missing a template for this request format and variant.

request.formats: ["application/json"]
request.variant: []
```