Cost center &/& is blocked against revenue postings on &

What causes this issue?

Cost center &V2& in controlling area &V1& is locked for revenue
postings on &V3&.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Assign the account to another cost center or allow cost center &V2& to
again accept revenue postings.

Error message extract from SAP system. Copyright SAP SE.