求翻译：卖方未能履行合同规定的其他义务，卖方在收到买方发出的违约通知后30天内，或经买方书面认可延长的时间内未能纠正其过失。是什么意思？

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正在翻译，请等待...

The seller has not been able to fulfill the contract provision other duties, the seller in receives the violation which the buyer sends out to inform in latter 30 day, or in the time which lengthens after the buyer written approval has not been able to correct its error.

The seller fails to fulfil the other obligations under the contract, the seller within 30 days of receipt of the buyer's notice of default, or approved in writing by the buyer within the extended time failed to correct their mistakes.

the seller fails to perform under the contract, the Seller's other obligations issued by the buyer on receipt of the notice of default within 30 days after the buyer's written approval or extended period of time to rectify their mistakes. ;