-32603 - Internal JSON-RPC Error

This is a “generic” wallet/provider error. It can be caused by:

• wrong network settings
• temporary RPC/provider issues
• fee settings not accepted by the network

What to do:

1. Refresh the page/app
2. Switch networks and switch back
3. Try again after 1–2 minutes
4. If it repeats, try a different RPC/provider (advanced) or a different wallet