Error: number-to-bn while converting number '0xNaN' to BN.js instance, error: invalid number value. Value must be an integer, hex string, BN or BigNumber instance. Note, decimals are not supported

The following error message can occur when performing a transaction in MetaMask:

In this case, contact Support by clicking the conversation button in the bottom right of this page. Our support agents will work with you to help you resolve the issue. This will help ensure you don't lose your SRP or private keys, and helps us fix this problem for you and other users.