fix: RPC error handling

feat: create and load wallets

lib/plugins/common/json-rpc.js

@@ -41,11 +41,11 @@ function fetch (account = {}, method, params) {
       return r.data.result
     })
     .catch(err => {
-      throw new Error(_.join(' ', [
-        'json-rpc::axios error:',
-        JSON.stringify(_.get('message', err, '')),
-        JSON.stringify(_.get('response.data.error', err, ''))
-      ]))
+      throw new Error(JSON.stringify({
+        responseMessage: _.get('message', err),
+        message: _.get('response.data.error.message', err),
+        code: _.get('response.data.error.code', err)
+      }))
     })
 }