better errorhandling

Author: Kim Neunert

src/cryptoadvance/specterext/spectrum/bridge_rpc.py

@@ -94,10 +94,7 @@ def multi(self, calls: list, **kwargs):
                 f"Request error: {ve}", mock_response
             )
         except SpectrumRpcError as se:
-            mock_response = object()
-            mock_response.status_code = se.code
-            mock_response.text =se.message
-            raise SpecterRpcError(se.message, mock_response)
+            raise SpecterRpcError(str(se), status_code=500, error_code=se.code, error_msg=se.message)
 
 
     def __repr__(self) -> str: