That error makes more sense now.
Your line 9 refers to "me.Parent.cmbVisits" but that combo is not in the parent form, it is in the parents parent, so try:
cmd1.Parameters("@VisitID") = NZ(me.parent.parent.cmbVisits,
Ransomware – malware that gets on your customers’ computers, encrypts their data, and extorts a hefty ransom for the decryption keys – is a surging new threat. The purpose of this eBook is to educate the reader about ransomware attacks.
The System Center Operations Manager 2012, known as SCOM, is a part of the Microsoft system center product that provides the user with infrastructure monitoring and application performance monitoring.
Windows or UNIX/LinuxNetwo…