chore: use Error object for throwing an error related to invalid exte…

…nsion name

plugins/index.js

@@ -6,7 +6,7 @@ module.exports = (on, config) => {
   } else if (extension === 'keplr') {
     selectedConfig = require('./keplr-plugin');
   } else {
-    throw new InvalidInputException(
+    throw new Error(
       `${extension} is not a valid extension name`,
     );
   }