Minified React error #200 Error

I can’t seem to activate or use Site Kit. I get the following error when activating.

Minified React error #200; visit https://reactjs.org/docs/error-decoder.html?invariant=200 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.

    in NotificationCounter
    in ActivationApp
    in RestoreSnapshots
    in ErrorHandler
    in Root

Screenshot here https://ibb.co/2ZCmCC2

In the Chrome console after activating site kit I get this error:

JQMIGRATE: Migrate is installed, version 3.3.2
googlesitekit-vendor.1ab65dea995935a778d0.js:1 Error: Minified React error #200; visit https://reactjs.org/docs/error-decoder.html?invariant=200 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at Bk (googlesitekit-vendor.1ab65dea995935a778d0.js:1)
    at NotificationCounter.value (googlesitekit-activation.ebe5f4ced7d703a07886.js:8)
    at ui (googlesitekit-vendor.1ab65dea995935a778d0.js:1)
    at si (googlesitekit-vendor.1ab65dea995935a778d0.js:1)
    at wi (googlesitekit-vendor.1ab65dea995935a778d0.js:1)
    at ga (googlesitekit-vendor.1ab65dea995935a778d0.js:1)
    at Zj (googlesitekit-vendor.1ab65dea995935a778d0.js:1)
    at Lj (googlesitekit-vendor.1ab65dea995935a778d0.js:1)
    at googlesitekit-vendor.1ab65dea995935a778d0.js:1
    at t.unstable_runWithPriority (googlesitekit-vendor.1ab65dea995935a778d0.js:1)
Pi @ googlesitekit-vendor.1ab65dea995935a778d0.js:1
googlesitekit-activation.ebe5f4ced7d703a07886.js:5 Caught an error: Error: Minified React error #200; visit https://reactjs.org/docs/error-decoder.html?invariant=200 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at Bk (googlesitekit-vendor.1ab65dea995935a778d0.js:1)
    at NotificationCounter.value (googlesitekit-activation.ebe5f4ced7d703a07886.js:8)
    at ui (googlesitekit-vendor.1ab65dea995935a778d0.js:1)
    at si (googlesitekit-vendor.1ab65dea995935a778d0.js:1)
    at wi (googlesitekit-vendor.1ab65dea995935a778d0.js:1)
    at ga (googlesitekit-vendor.1ab65dea995935a778d0.js:1)
    at Zj (googlesitekit-vendor.1ab65dea995935a778d0.js:1)
    at Lj (googlesitekit-vendor.1ab65dea995935a778d0.js:1)
    at googlesitekit-vendor.1ab65dea995935a778d0.js:1
    at t.unstable_runWithPriority (googlesitekit-vendor.1ab65dea995935a778d0.js:1) Object
value @ googlesitekit-activation.ebe5f4ced7d703a07886.js:5
plugins.php?plugin_status=all&paged=1&s:2896 UpdraftPlus: WP shiny updates (4.2+) detected: lock (lock variable: ajaxLocked)

Screenshot here – https://ibb.co/JQTmJyJ

I’ve installed “Health Check & Troubleshooting” When I activate the plugin here it doesn’t show any errors. The only error it highlights is that “Error The automatic_updater_disabled filter is enabled.” We’d rather keep disabled at the moment, changing it doesn’t seem to.

Any help would be greatly appreciated.