text: function InternalServerError(message) {
      this.message = message;
      this.stack = new Error().stack;
      this.statusCode = 500;
      this.errorType = this.name;
  }
  
  InternalServerError.prototype = Object.create(Error.prototype);
  InternalServerError.prototype.name = 'InternalServerError';
  
  module.exports = InternalServerError;
  