remove references to non-existent fields, add a clear error message

Author: Roman

bittensor_cli/src/commands/wallets.py

@@ -438,11 +438,10 @@ async def wallet_create(
                 "name": wallet.name,
                 "path": wallet.path,
                 "hotkey": wallet.hotkey_str,
-                "hotkey_ss58": wallet.hotkey.ss58_address,
                 "coldkey_ss58": wallet.coldkeypub.ss58_address,
             }
-        except KeyFileError:
-            err = "KeyFileError: File is not writable"
+        except KeyFileError as error:
+            err = str(error)
             print_error(err)
             output_dict["error"] = err
         try:
@@ -458,10 +457,9 @@ async def wallet_create(
                 "path": wallet.path,
                 "hotkey": wallet.hotkey_str,
                 "hotkey_ss58": wallet.hotkey.ss58_address,
-                "coldkey_ss58": wallet.coldkeypub.ss58_address,
             }
-        except KeyFileError:
-            err = "KeyFileError: File is not writable"
+        except KeyFileError as error:
+            err = str(error)
             print_error(err)
             output_dict["error"] = err
     if json_output: