Current Unit Price sales order error

We suddenly started getting this error message on sales orders this morning. I have a ticket out but no response yet. Anyone else getting this? (We are cloud).

Application Error

Exception caught in: Epicor.ServiceModel

Error Detail

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Correlation ID: 52b22c78-18e9-41cc-89a8-dafbbcbf31d9

Message: Object reference not set to an instance of an object.

Program: Epicor.ServiceModel.dll

Method: ShouldRethrowNonRetryableException

Client Stack Trace

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at Epicor.ServiceModel.Channels.ImplBase`1.ShouldRethrowNonRetryableException(Exception ex, DataSet[] dataSets)

at Erp.Proxy.BO.SalesOrderImpl.MasterUpdate(Boolean lCheckForOrderChangedMsg, Boolean lcheckForResponse, String cTableName, Int32 iCustNum, Int32 iOrderNum, Boolean lweLicensed, Boolean& lContinue, String& cResponseMsg, String& cCreditShipAction, String& cDisplayMsg, String& cCompliantMsg, String& cResponseMsgOrdRel, String& cAgingMessage, SalesOrderDataSet ds)

at Erp.Adapters.SalesOrderAdapter.MasterUpdate(Boolean lCheckForOrderChangedMsg, Boolean lcheckForResponse, String cTableName, Int32 iCustNum, Int32 iOrderNum, Boolean lweLicensed, Boolean& lContinue, String& cResponseMsg, String& cCreditShipAction, String& cDisplayMsg, String& cCompliantMsg, String& cResponseMsgOrdRel, String& cAgingMessage)

at Erp.UI.App.SalesOrderEntry.Transaction.Update()