Encryption key - saved it but now not able to find it... how to i retrieve it?

Please read the following as per our guide here https://www.jotform.com/help/344-Encrypted-Forms-and-How-to-Use-Them.

Q13: What Will Happen If I Lose the Private Key?

If you have lost the private key, then there is not much that you can do. It means that your encrypted data is lost forever, there is no copy of the same on our servers and it is not possible to crack the one that you had.

Our only recommendation is to turn off encryption right away so you can start receiving submissions normally again. Leave the encrypted submission data on your Submissions Page just in case you find the key at some later point in time.

Note that if you can see decrypted data in some browser, but the key is lost, it may be possible to restore the key from that browser's local storage. If this is the case, contact our support for instructions.