diff --git a/src/addons/mod/workshop/components/index/addon-mod-workshop-index.html b/src/addons/mod/workshop/components/index/addon-mod-workshop-index.html
index a9ef7ca64..07801751f 100644
--- a/src/addons/mod/workshop/components/index/addon-mod-workshop-index.html
+++ b/src/addons/mod/workshop/components/index/addon-mod-workshop-index.html
@@ -13,15 +13,15 @@
         [hasDataToSync]="hasOffline" (completionChanged)="onCompletionChange()">
     </core-course-module-info>
 
-    <ion-card *ngIf="phases">
+    <ion-card *ngIf="phases && workshop">
         <ion-item button (click)="viewPhaseInfo()" detail="true">
             <ion-label>
-                <h2 class="ion-text-wrap">{{ phases[workshop!.phase].title }}</h2>
+                <h2 class="ion-text-wrap">{{ phases[workshop.phase].title }}</h2>
             </ion-label>
         </ion-item>
-        <ng-container *ngIf="phases && phases[workshop!.phase] && phases[workshop!.phase].tasks &&
-            phases[workshop!.phase].tasks.length">
-            <ion-item button class="ion-text-wrap" *ngFor="let task of phases[workshop!.phase].tasks"
+        <ng-container *ngIf="phases && phases[workshop.phase] && phases[workshop.phase].tasks &&
+            phases[workshop.phase].tasks.length">
+            <ion-item button class="ion-text-wrap" *ngFor="let task of phases[workshop.phase].tasks"
                 [class.item-dimmed]="task.code == 'submit' && !showSubmit" (click)="runTask(task)" detail="false">
                 <ion-icon slot="start" name="far-circle" *ngIf="task.completed == null"
                     [attr.aria-label]="'addon.mod_workshop.tasktodo' | translate"></ion-icon>
@@ -45,7 +45,7 @@
     </ion-card>
 
     <!-- Description (setup phase only) -->
-    <ion-card *ngIf="description && workshop && workshop!.phase == PHASE_SETUP">
+    <ion-card *ngIf="description && workshop && workshop.phase == PHASE_SETUP">
         <ion-item class="ion-text-wrap">
             <ion-label>
                 <h3 class="item-heading">{{ 'core.description' | translate }}</h3>
@@ -56,14 +56,14 @@
         </ion-item>
     </ion-card>
 
-    <div *ngIf="access && workshop && workshop!.phase >= PHASE_SUBMISSION">
+    <div *ngIf="access && workshop && workshop.phase >= PHASE_SUBMISSION">
         <!-- CLOSED PHASE -->
-        <ng-container *ngIf="workshop!.phase >= PHASE_CLOSED">
-            <ion-card *ngIf="workshop!.conclusion">
+        <ng-container *ngIf="workshop.phase >= PHASE_CLOSED">
+            <ion-card *ngIf="workshop.conclusion">
                 <ion-item class="ion-text-wrap">
                     <ion-label>
                         <h3 class="item-heading">{{ 'addon.mod_workshop.conclusion' | translate }}</h3>
-                        <core-format-text collapsible-item [component]="component" [componentId]="module.id" [text]="workshop!.conclusion"
+                        <core-format-text collapsible-item [component]="component" [componentId]="module.id" [text]="workshop.conclusion"
                             contextLevel="module" [contextInstanceId]="module.id" [courseId]="courseId">
                         </core-format-text>
                     </ion-label>
@@ -92,11 +92,11 @@
         </ng-container>
 
         <!-- SUBMISSION PHASE -->
-        <ion-card *ngIf="workshop!.phase == PHASE_SUBMISSION && workshop!.instructauthors">
+        <ion-card *ngIf="workshop.phase == PHASE_SUBMISSION && workshop.instructauthors">
             <ion-item class="ion-text-wrap">
                 <ion-label>
                     <h3 class="item-heading">{{ 'addon.mod_workshop.areainstructauthors' | translate }}</h3>
-                    <core-format-text collapsible-item [component]="component" [componentId]="module.id" [text]="workshop!.instructauthors"
+                    <core-format-text collapsible-item [component]="component" [componentId]="module.id" [text]="workshop.instructauthors"
                         contextLevel="module" [contextInstanceId]="module.id" [courseId]="courseId">
                     </core-format-text>
                 </ion-label>
@@ -106,10 +106,10 @@
         <ion-card *ngIf="canSubmit">
             <ion-item-divider class="ion-text-wrap">
                 <ion-label>
-                    <h3 class="item-heading" *ngIf="workshop!.phase != PHASE_CLOSED || !submission">
+                    <h3 class="item-heading" *ngIf="workshop.phase != PHASE_CLOSED || !submission">
                         {{ 'addon.mod_workshop.yoursubmission' | translate }}
                     </h3>
-                    <h3 class="item-heading" *ngIf="workshop!.phase == PHASE_CLOSED && submission">
+                    <h3 class="item-heading" *ngIf="workshop.phase == PHASE_CLOSED && submission">
                         {{ 'addon.mod_workshop.yoursubmissionwithassessments' | translate }}
                     </h3>
                 </ion-label>
@@ -119,13 +119,13 @@
                     <p *ngIf="!submission">{{ 'addon.mod_workshop.noyoursubmission' | translate }}</p>
                 </ion-label>
             </ion-item>
-            <addon-mod-workshop-submission *ngIf="submission" [submission]="submission" [courseId]="workshop!.course" [module]="module"
+            <addon-mod-workshop-submission *ngIf="submission" [submission]="submission" [courseId]="workshop.course" [module]="module"
                 [workshop]="workshop" [access]="access">
             </addon-mod-workshop-submission>
         </ion-card>
 
 
-        <ng-container *ngIf="workshop!.phase >= PHASE_CLOSED">
+        <ng-container *ngIf="workshop.phase >= PHASE_CLOSED">
             <ion-card *ngIf="publishedSubmissions && publishedSubmissions.length">
                 <ion-item-divider class="ion-text-wrap">
                     <ion-label>
@@ -133,7 +133,7 @@
                     </ion-label>
                 </ion-item-divider>
                 <ng-container *ngFor="let submission of publishedSubmissions">
-                    <addon-mod-workshop-submission [submission]="submission" [courseId]="workshop!.course" [module]="module"
+                    <addon-mod-workshop-submission [submission]="submission" [courseId]="workshop.course" [module]="module"
                         [workshop]="workshop" [access]="access" summary="true" class="core-as-item">
                     </addon-mod-workshop-submission>
                 </ng-container>
@@ -141,14 +141,13 @@
         </ng-container>
 
         <!-- ASSESSMENT PHASE -->
-        <ng-container *ngIf="workshop!.phase >= PHASE_ASSESSMENT">
-            <ion-card *ngIf="workshop!.phase == PHASE_ASSESSMENT && workshop!.instructreviewers">
+        <ng-container *ngIf="workshop.phase >= PHASE_ASSESSMENT">
+            <ion-card *ngIf="workshop.phase == PHASE_ASSESSMENT && workshop.instructreviewers">
                 <ion-item class="ion-text-wrap">
                     <ion-label>
                         <h3 class="item-heading">{{ 'addon.mod_workshop.areainstructreviewers' | translate }}</h3>
                         <core-format-text collapsible-item [component]="component" [componentId]="module.id"
-                            [text]="workshop!.instructreviewers" contextLevel="module" [contextInstanceId]="module.id"
-                            [courseId]="courseId">
+                            [text]="workshop.instructreviewers" contextLevel="module" [contextInstanceId]="module.id" [courseId]="courseId">
                         </core-format-text>
                     </ion-label>
                 </ion-item>
@@ -167,7 +166,7 @@
                 </ion-item>
                 <ng-container *ngFor="let assessment of (assessments || [])">
                     <addon-mod-workshop-submission [submission]="assessment.submission" [assessment]="assessment"
-                        [courseId]="workshop!.course" [module]="module" [workshop]="workshop" [access]="access" summary="true"
+                        [courseId]="workshop.course" [module]="module" [workshop]="workshop" [access]="access" summary="true"
                         class="core-as-item">
                     </addon-mod-workshop-submission>
                 </ng-container>
@@ -175,13 +174,13 @@
         </ng-container>
 
         <!-- MULTIPLE PHASES SUBMISSION OR GREATER only teachers -->
-        <ion-card *ngIf="access.canviewallsubmissions && workshop!.phase >= PHASE_SUBMISSION &&
+        <ion-card *ngIf="access.canviewallsubmissions && workshop.phase >= PHASE_SUBMISSION &&
             ((grades && grades.length) || (groupInfo && (groupInfo.separateGroups || groupInfo.visibleGroups)))">
             <ion-item-divider class="ion-text-wrap">
                 <ion-label>
-                    <h3 class="item-heading" *ngIf="workshop!.phase == PHASE_SUBMISSION">{{ 'addon.mod_workshop.submissionsreport' |
+                    <h3 class="item-heading" *ngIf="workshop.phase == PHASE_SUBMISSION">{{ 'addon.mod_workshop.submissionsreport' |
                         translate }}</h3>
-                    <h3 class="item-heading" *ngIf="workshop!.phase > PHASE_SUBMISSION">{{ 'addon.mod_workshop.gradesreport' | translate }}
+                    <h3 class="item-heading" *ngIf="workshop.phase > PHASE_SUBMISSION">{{ 'addon.mod_workshop.gradesreport' | translate }}
                     </h3>
                 </ion-label>
             </ion-item-divider>
@@ -189,7 +188,7 @@
             </core-group-selector>
 
             <ng-container *ngFor="let submission of grades">
-                <addon-mod-workshop-submission [submission]="submission" [courseId]="workshop!.course" [module]="module"
+                <addon-mod-workshop-submission [submission]="submission" [courseId]="workshop.course" [module]="module"
                     [workshop]="workshop" [access]="access" summary="true" class="core-as-item">
                 </addon-mod-workshop-submission>
             </ng-container>
@@ -197,13 +196,13 @@
             <ion-grid *ngIf="page > 0 || hasNextPage">
                 <ion-row class="ion-align-items-center">
                     <ion-col *ngIf="page > 0">
-                        <ion-button expand="block" fill="outline" (click)="gotoSubmissionsPage(page! -1)">
+                        <ion-button expand="block" fill="outline" (click)="gotoSubmissionsPage(page -1)">
                             <ion-icon name="fas-chevron-left" slot="start" aria-hidden="true"></ion-icon>
                             {{ 'core.previous' | translate }}
                         </ion-button>
                     </ion-col>
                     <ion-col *ngIf="hasNextPage">
-                        <ion-button expand="block" (click)="gotoSubmissionsPage(page! + 1)">
+                        <ion-button expand="block" (click)="gotoSubmissionsPage(page + 1)">
                             {{ 'core.next' | translate }}
                             <ion-icon name="fas-chevron-right" slot="end" aria-hidden="true"></ion-icon>
                         </ion-button>