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"Oh no" error message - debug option #2

If you are using MetaMask and seeing the "Oh no" error screen when trying to convert tokens it may be because MetaMask is only letting you sign part of the transactions needed to convert the tokens.

Here's how to identify and solve this issue.

If you try to "Sell" tokens, MetaMask opens a popup window to sign the transaction but when you click "Submit" you immediately see the "Oh no" error screen.

Below is the normal MetaMask popup window. Note: You will see "1 of 2" transactions to sign.

Now here is the incorrect popup by MetaMask. Note: You will only see 1 transaction to sign.

 

Solution:

  1. Make sure you have the private key or any other method to recover your MetaMask wallet.
  2. Uninstall MetaMask from your browser.
  3. Reinstall MetaMask.
  4. Import your wallet (saved in step one).

Try to convert at this stage and you should be see the "normal" MetaMask popup window displaying two transactions to sign.

Still see the "Oh no" error message? Check out additional debug options or contact Bancor support.

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Disclaimer: When reading this article, please keep in mind the following: (1) Important to notice that wherever referring to any sensitive information of yours, including private keys, key-pairs or other account information, that information is yours. We can only make limited suggestions to how such information may be treated and protected, but the responsibility is yours. You should always make sure your information is protected and kept private, in the best available way; (2) that the information contained herein is a simplified extract of detailed information and sources generally available on the internet. This basic information was collected and displayed in attempt to provide you with better understanding of certain processes and aspects which relate to content and applications on Bancor’s site. Although we do our best to keep this information up-to-date, we cannot always guaranty that. This is since the information originates from third parties or relates to third party services, applications and technologies (such as Metamask, Scatter, EOSToolkit, or EOS), which are unrelated or unaffiliated with Bancor. These third parties’ applications, services and technologies are available on the internet, and may be subjected to applicable terms and conditions. Accordingly, though the said information and third applications, services and technologies (“Third Parties Content”) are believed to be reliable, Bancor provides no warranties regarding them (including their accuracy or completeness). IN NO EVENT WILL BANCOR BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST REVENUES, LOST PROFITS OR LOSS OF PROSPECTIVE ECONOMIC ADVANTAGE RESULTING FROM THE USE OF THE THIRD PARTIES CONTENT EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, OR FOR ANY CLAIM BY ANOTHER PARTY.