It sounds like you may have encountered a scammer. It is important to be aware of the potential risks when dealing with cryptocurrencies, as scammers can use fake names to try to access your funds. If you are still getting the error when trying to edit your profile on fxHash, it may be best to reach out to their customer service team for assistance. They may be able to help you troubleshoot the issue and ensure that your funds are safe. Additionally, make sure to review the pinned message in your wallet, as it contains important security information.