perform a contract

基本解释

Due to the force majeure causes any party is unable to perform a contract due to force majeure, should be in 3 days after the event notification, try to reduce the loss.
任何一方由于不可抗力原因不能履行合同时，应在不可抗力事件发生后3日内通知对方，尽力减少损失。
Article 107 Civil liability shall not be borne for failure to perform a contract or damage to a third party if it is caused by force majeure, except as otherwise provided by law.
第一百零七条因不可抗力不能履行合同或者造成他人损害的，不承担民事责任，法律另有规定的除外。
This system demonstrates the equality and justice of law , and is a legal remedy to the client when it is obviously unfair to perform a contract in the case that some unforeseen risks exist.
该制度体现了法的公平正义精神，系对当事人因不正常风险致使合同履行显失公平时的法律救济。

This may be a subject for contract terms and conditions with professional services firms who perform these services.
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Those are the facts necessary to satisfy the elements of a claim for, say, breach of contract: promise, consideration, failure to perform, causation and damages, or the requirements of an affirmative defense: impossibility of performance, for instance.
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