Issue 1: Fund operation failed
**Possible reasons**:
- Operation amount exceeds account balance
- Insufficient permissions
- System error
**Solution**:
- Check whether the account balance is sufficient
- Confirm operation permissions
- Contact technical support
Issue 2: Abnormal fund balance
**Possible reasons**:
- Loss of operation records
- System calculation error
- Data is not synchronized
**Solution**:
- Check fund operation log
- Verify operation records
- Contact technical support for processing