Driver issues on mac; FTDIUSBSerialDriver_10_4_10_5_10_6

This is the message I get after I've installed the driver:

System extension cannot be used The system extension "/System/Library/Extensions/ hpPlugInInit.kext" was installed improperly and cannot be used. Please try reinstalling it, or contact the product's vendor for an update.

Could anyone please help me out?

Best regards

Niels

Which Arduino board are you using?

hpPlugInInit.kext is nothing to do with the Arduino it is a Hewlett Packard kext.

Do you have a HP Scanner or printer?