Refactor and cleanup

src/pineapple/modules/PineAP/module.html

@@ -243,7 +243,7 @@
                                 ng-disabled="generatingCertificate">Generate Certificate
                         </button>
                         <img src="img/throbber.gif" ng-show="generatingCertificate"/>
-                        <span class="alert well-sm alert-danger" ng-show="error">{{ error }}<span>
+                        <span class="alert well-sm alert-danger" ng-show="error">{{ error }}</span>
                     </div>
                 </div>
                 <div ng-show="view === 'normal'">