diff --git a/frontend/src/services/util-registry/util-registry.js b/frontend/src/services/util-registry/util-registry.js
index b8dea6ec3..67cc09702 100644
--- a/frontend/src/services/util-registry/util-registry.js
+++ b/frontend/src/services/util-registry/util-registry.js
@@ -101,9 +101,9 @@ export class UtilRegistry {
     let utilsInScope = this._getUtilInstancesWithinScope(scope);
 
     utilsInScope.forEach((util) => {
-      //if(DEBUG_MODE > 2) {
-      console.log('Destroying Util: ', {util});
-      //}#
+      if(DEBUG_MODE > 2) {
+        console.log('Destroying Util: ', {util});
+      }
       let utilIndex = this._activeUtilInstancesWrapped.indexOf(util);
       util.destroy();
       this._activeUtilInstancesWrapped.splice(utilIndex, 1);
diff --git a/frontend/src/utils/alerts/alerts.js b/frontend/src/utils/alerts/alerts.js
index 4f84d8aac..8f7877e68 100644
--- a/frontend/src/utils/alerts/alerts.js
+++ b/frontend/src/utils/alerts/alerts.js
@@ -103,9 +103,9 @@ export class Alerts {
     }
 
     const closeEl = alertElement.querySelector('.' + ALERT_CLOSER_CLASS);
-    const closeAlertEvent = new EventWrapper(EVENT_TYPE.CLICK, () => {
-      this._toggleAlert(alertElement).bind(this);
-    }, closeEl);
+    const closeAlertEvent = new EventWrapper(EVENT_TYPE.CLICK, (() => {
+      this._toggleAlert(alertElement);
+    }).bind(this), closeEl);
 
     this._eventManager.registerNewListener(closeAlertEvent);
 
diff --git a/frontend/src/utils/mass-input/mass-input.js b/frontend/src/utils/mass-input/mass-input.js
index 184706b4d..4969e8c14 100644
--- a/frontend/src/utils/mass-input/mass-input.js
+++ b/frontend/src/utils/mass-input/mass-input.js
@@ -71,7 +71,7 @@ export class MassInput {
     });
     
     const submitEv = new EventWrapper(EVENT_TYPE.SUBMIT, this._massInputFormSubmitHandler.bind(this), this._massInputForm);
-    const keyPressEv = new EventWrapper(EVENT_TYPE.KEYDOWN, this._keypressHandler.bind(this), this.massInputForm);
+    const keyPressEv = new EventWrapper(EVENT_TYPE.KEYDOWN, this._keypressHandler.bind(this), this._massInputForm);
     this._eventManager.registerListeners([submitEv, keyPressEv]);
 
     Array.from(this._element.querySelectorAll(MASS_INPUT_ADD_CELL_SELECTOR)).forEach(this._setupChangedHandlers.bind(this));
diff --git a/frontend/src/utils/pageactions/pageactions.js b/frontend/src/utils/pageactions/pageactions.js
index 870065a4e..88084636b 100644
--- a/frontend/src/utils/pageactions/pageactions.js
+++ b/frontend/src/utils/pageactions/pageactions.js
@@ -117,7 +117,7 @@ export class PageActionSecondaryUtil {
 
   destroy() {
     this._eventManager.cleanUp();
-    if(this._closer && this._closer.classList.contains())
+    if(this._closer && this._closer.classList.contains('pagenav-item__close-label--hidden'))
       this._closer.classList.remove('pagenav-item__close-label--hidden');
     this._element.classList.remove(PAGEACTION_SECONDARY_INITIALIZED_CLASS);
    }
diff --git a/frontend/src/utils/show-hide/show-hide.js b/frontend/src/utils/show-hide/show-hide.js
index e7f7c3315..411cf1a7d 100644
--- a/frontend/src/utils/show-hide/show-hide.js
+++ b/frontend/src/utils/show-hide/show-hide.js
@@ -70,9 +70,9 @@ export class ShowHide {
   }
 
   destroy() {
+    this._storageManager.clear({ location: LOCATION.LOCAL });
     this._eventManager.cleanUp();
-    this._storageManager.clear();
-    if(this._element.parentElement.contains(SHOW_HIDE_COLLAPSED_CLASS))
+    if (this._element.parentElement.classList.contains(SHOW_HIDE_COLLAPSED_CLASS))
       this._element.parentElement.classList.remove(SHOW_HIDE_COLLAPSED_CLASS);
     this._element.classList.remove(SHOW_HIDE_INITIALIZED_CLASS, SHOW_HIDE_TOGGLE_CLASS);
   }
diff --git a/frontend/src/utils/tooltips/tooltips.js b/frontend/src/utils/tooltips/tooltips.js
index c520af204..2a4d77e9b 100644
--- a/frontend/src/utils/tooltips/tooltips.js
+++ b/frontend/src/utils/tooltips/tooltips.js
@@ -59,7 +59,7 @@ export class Tooltip {
     const mouseOutEv = new EventWrapper(EVENT_TYPE.MOUSE_OUT, (this._leave.bind(this)).bind(this), this._element);
     const contentMouseOut = new EventWrapper(EVENT_TYPE.MOUSE_OUT, (this._leave.bind(this)).bind(this), this._content);
     const clickEv = new EventWrapper(EVENT_TYPE.CLICK, this._click.bind(this), this._element);
-    this.registerListeners([mouseOverEv, mouseOutEv, contentMouseOut, clickEv]);
+    this._eventManager.registerListeners([mouseOverEv, mouseOutEv, contentMouseOut, clickEv]);
   }
 
   open(persistent) {