Final answer:
The error caused by the automatic dispensing machine mixing two medications due to a computer glitch is a technical error.
Step-by-step explanation:
The root cause of the error in which two different medications were mixed together in one bottle due to an automatic dispensing machine experiencing a computer glitch can be categorized as a technical error. The term 'technical' refers to problems related to the equipment, machinery, or technology used in the process. In this case, the glitch that caused the mixing of medications is directly related to the malfunctioning of the computer systems within the automatic dispensing machine, which classifies it as a technical malfunction rather than a human error or an organizational problem.