🚨 Error: Cannot read properties of null (reading 'setState')

Details
---
**Error report:** [link](http://go/ampe/CNnSl5Xgp_OupQE)
**First seen:** Feb 15, 2022
**Frequency:** ~ 13,026/day

Stacktrace
---

Error: Cannot read properties of null (reading 'setState')

    at setState (amp-story/1.0/amp-story.js:467:23)

    at pause_ (amp-story/1.0/amp-story.js:1547:57)

    at onVisibilityChanged_ (amp-story/1.0/amp-story.js:734:52)

    at opt_event (src/core/data-structures/observable.js:62:14)

    at fire (src/service/ampdoc-impl.js:642:36)

    at updateVisibilityState_ (src/service/ampdoc-impl.js:560:11)

    at overrideVisibilityState (src/service/viewer-impl.js:535:16)

    at setVisibilityState_ (src/service/viewer-impl.js:695:11)

    at receiveMessage (amp-viewer-integration/0.1/amp-viewer-integration.js:198:20)

    at handler (amp-viewer-integration/0.1/messaging/messaging.js:416:20)

Notes
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`@erwinmombay` modified `src/core/data-structures/observable.js:62-62` in [#4249](https://github.com/ampproject/amphtml/pull/4249) (Sep 9, 2016)
`@dvoytenko` modified `src/service/ampdoc-impl.js:642-652` in [#23799](https://github.com/ampproject/amphtml/pull/23799) (Aug 19, 2019)
`@dvoytenko` modified `src/service/ampdoc-impl.js:555-571` in [#23799](https://github.com/ampproject/amphtml/pull/23799) (Aug 19, 2019)
`@dvoytenko` modified `src/service/viewer-impl.js:535-535` in [#23799](https://github.com/ampproject/amphtml/pull/23799) (Aug 19, 2019)
`@jridgewell` modified `src/service/viewer-impl.js:695-695` in [#2212](https://github.com/ampproject/amphtml/pull/2212) (Feb 26, 2016)

**Seen in:**
- 02-14 Beta (2035+1)
- 02-14 Experimental (2035+1)
- 02-23 Control (0359+1)
- 02-23 Stable (0359+1)
- 03-04 Nightly (1950)
- +1 more

**Possible assignees:** `@dvoytenko`, `@erwinmombay`

/cc @ampproject/release-on-duty