Update instance and remove country picklist by Salesforce

[LVNRV]

Org ID: 00Dj0000001ssF2

Salesforce country picklist is generating problem with event. Enable C&P Country / State

Reported error:
System response:

"Insert failed. First exception on row 0; first error: FIELD_INTEGRITY_EXCEPTION, There's a problem with this state, even though it may appear correct. Please select a state from the list of valid states.: Billing State/Province: [BillingState]"

[CnP.Support]

Good day!

We disabled the country / state picklist with Salesforce.

If you wish to enable it again please follow the path below:

• Setup > Data Management > State and Country Picklists > Disable State and Country Picklists

As part of our review we also upgraded your instance to all the latest apps and enabled Click & Pledge country / state picklist in the C&P Settings > Countries & States menu.

Please let us know if we can be of any further assistance.