If you’re seeing a “failed to fetch” error, it typically means you’re experiencing a connection issue. You can try these troubleshooting steps to fix the issue:
Make sure you’re not using a firewall or VPN to access OpenSea
Clear your browser’s cache
Refresh your wallet funds by clicking the "Refresh" button next to Tokens in the Crypto tab of your wallet sidebar on OpenSea, which should update your balance. Then, retry the transaction
Try accessing OpenSea from a different device or network
If none of these troubleshooting steps help, you can reach out to support. Make sure to include your wallet ID, wallet provider, your browser, where you’re seeing the issue, and a description of the issue.