Question: Kernel Connection lost, worksheet lost, How can I recover it ?

Hi, while working on a worksheet a message abou kernel lost appear, saying to restart maple. I saved my worksheet (maybe I should  have not) and I restard it, but now my worksheet its a complete nonsense and I seem to have lost weeks and weeks of work. Is there anyway to recover my orginal woeksheet (the .bak file is also crushed) ?

Here is the crashed worksheet


thanks in advance

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