3814439 - Why is my invoice stuck in the status Vendor Screening status 'Pending Validation - Code: VENPNRWV, Level 1?

Once the invoice was approved, the invoice moved to 'Pending Validation - Concur System' and it is now stuck there with no other option to continue.
It contains the exception VENPNRWV, "Level: 1; This action cannot be completed because the selected vendor is currently under review as part of the SAP’s Export Control and Sanctions Compliance policy. We appreciate your patience as we are processing your request as quickly as possible"

One of my invoices is stuck at the approval status 'Pending Validation - Concur System'? , KBA , CON-SRV-TRV-ADM-VMG , Vendor Management , Problem