Appeals. The ZBA shall have the authority to hear and decide upon any appeal where it is alleged that there is an error in the order, requirements, decision or determination of the Zoning Enforcement Officer. No question of hardship shall be involved in such an appeal, and the action of the ZBA thereon shall be limited to the question of whether or not, and to what extent, such order, requirement, decision or determination was a correct interpretation of the subject provision of these regulations.