We have an Amazon Connect installation (v4.4) in our Salesforce org and it was working fine until this week when it started showing a 'Sorry to Interrupt' message on incoming calls.

I've disabled all custom scripts/components and still receive the issue.  This error only shows up for a select number of call center users and shows up at random for those users.

I have not been able to reproduce this issue in a sandbox.

Any suggestions would be greatly appreciated :)

Uncaught Error in $A.getCallback() [Cannot read property 'state' of null]
Callback failed: serviceComponent://ui.opencti.components.openCtiApiHandler.OpenCtiApiHandlerController/ACTION$getSearchUsingSoftphoneLayout
throws at https://dummy_org.lightning.force.com/auraFW/javascript/AE898lCB2KpCUerBipCwXg/aura_prod.js:66:15. Caused by: Error in $A.getCallback() [Cannot read property 'state' of null]
Callback failed: serviceComponent://ui.opencti.components.openCtiApiHandler.OpenCtiApiHandlerController/ACTION$getSearchUsingSoftphoneLayout
Object.fireSearchRequest()@https://dummy_org.lightning.force.com/libraries/forceSearch/searchLibrary.event.js:4:244
Object.fireSearch()@https://dummy_org.lightning.force.com/libraries/forceSearch/searchLibrary.event.js:6:96
Object.navigateToSearchPage()@https://dummy_org.lightning.force.com/libraries/opencti/ctiLibrary.navigation.js:3:163
Object.searchAndScreenPopHandleInboundNavigation()@https://dummy_org.lightning.force.com/auraCmpDef?aura.app=markup://one:one&_au=xPMHjhRYKs3Pd1nCeZrBzQ&_ff=DESKTOP&_l=true&_l10n=en_US&_c=false&_style=-1244045752&_density=VIEW_ONE&_def=markup://opencti:openCtiApiHandler&_uid=LATEST-5:50:135
Object.searchAndScreenPopControllerCallback()@https://dummy_org.lightning.force.com/auraCmpDef?aura.app=markup://one:one&_au=xPMHjhRYKs3Pd1nCeZrBzQ&_ff=DESKTOP&_l=true&_l10n=en_US&_c=false&_style=-1244045752&_density=VIEW_ONE&_def=markup://opencti:openCtiApiHandler&_uid=LATEST-5:39:6
Object.<anonymous>()@https://dummy_org.lightning.force.com/auraCmpDef?aura.app=markup://one:one&_au=xPMHjhRYKs3Pd1nCeZrBzQ&_ff=DESKTOP&_l=true&_l10n=en_US&_c=false&_style=-1244045752&_density=VIEW_ONE&_def=markup://opencti:openCtiApiHandler&_uid=LATEST-5:24:154