Any waiver of a default or provision under this Agreement must be in writing. No such waiver constitutes a waiver of any other default or provision concerning the same or any other provision of this Agreement. No delay or omission by a party in the exercise of any of his/its rights or remedies constitutes a waiver of (or otherwise impairs) such right or remedy. A consent to or approval of an act does not waive or render unnecessary the consent to or approval of any other or subsequent act.