any other circumstance, or event, whether or not similar to any listed above and including any defect in this Agreement or in its due execution by any party to this Agreement, unless it is caused by the wilful misconduct or gross negligence of the Lessor and which, in circumstances where it is established to the satisfaction of the Lessor that it is not due to the negligence or wilful misconduct of the Lessee, results in an interruption or cessation in the use or utilising of the Property.