Your payment provider will require you to carry out your PCI compliance review and scans to be compliant to be allowed to continue to take card payments online. Normally with cashflows, this will be VikingCloud - PCI DSS
What we need from you is for you to provide your credentials for us to carry out the initial PCI compliance and scan.
This will usually take a few weeks at least until we get through completely compliant. During this time you will receive multiple notifications but don't worry our team will handle this.