diff --git a/block_overviewmyrolesincourses.php b/block_overviewmyrolesincourses.php
index 296d028..af4ebe8 100644
--- a/block_overviewmyrolesincourses.php
+++ b/block_overviewmyrolesincourses.php
@@ -188,8 +188,8 @@ public function get_courses_enroled_with_roleid(
                     // Add additional information like url to the course, ...
                     $url = new moodle_url('/course/view.php', ['id' => $enroledcourse->id]);
                     $urldelete = new moodle_url('/course/delete.php', ['id' => $enroledcourse->id]);
-                    $enroledcoursewithrole->url = $url;
-                    $enroledcoursewithrole->urldelete = $urldelete;
+                    $enroledcoursewithrole->url = $url.__toString();
+                    $enroledcoursewithrole->urldelete = $urldelete.__toString();
                     $enroledcoursewithrole->dimmed = $dimmed;
                     $enroledcoursewithrole->duration = $this->create_duration($enroledcourse)->duration;
                     $enroledcoursewithrole->durationstatus = $this->create_duration($enroledcourse)->durationstatus;
diff --git a/styles.css b/styles.css
index b742577..fcf8be2 100644
--- a/styles.css
+++ b/styles.css
@@ -51,11 +51,11 @@
     padding-left: 5px;
 }
 .overviewmyrolesincourses-foldonstart {
-     display: none;
- }
+    display: none;
+}
 
 .row.duration {
-    margin-left: 0px;
+    margin-left: 0;
 }
 .row.duration .col-8 {
     padding-left: 0;
@@ -64,11 +64,6 @@
     padding-right: 10px;
 }
 
-
-
-
-
-
 .overviewmyrolesincourses-tools {
     text-align: right;
 }
diff --git a/templates/overviewmyrolesincourses.mustache b/templates/overviewmyrolesincourses.mustache
index d5a73c9..91ff3c9 100644
--- a/templates/overviewmyrolesincourses.mustache
+++ b/templates/overviewmyrolesincourses.mustache
@@ -31,8 +31,8 @@
           "coursefullname": "Mathe fractions xxx",
           "visible": "1",
           "favourite": true,
-          "url": {},
-          "urldelete": {},
+          "url": "",
+          "urldelete": "",
           "dimmed": "",
           "duration": "19\/08\/30 - 19\/08\/40",
           "cssselectordurationstatusofcourse": "overviewmyrolesincourses-coursefuture",
@@ -47,8 +47,8 @@
           "coursefullname": "Activities (plugins)",
           "visible": "1",
           "favourite": true,
-          "url": {},
-          "urldelete": {},
+          "url": "",
+          "urldelete": "",
           "dimmed": "",
           "duration": "23\/07\/21 - 24\/07\/23",
           "cssselectordurationstatusofcourse": "overviewmyrolesincourses-courseinprogress",
@@ -63,8 +63,8 @@
           "coursefullname": "Testing filters",
           "visible": "0",
           "favourite": true,
-          "url": {},
-          "urldelete": {},
+          "url": "",
+          "urldelete": "",
           "dimmed": "dimmed",
           "duration": "23\/07\/21 - 24\/07\/22",
           "cssselectordurationstatusofcourse": "overviewmyrolesincourses-coursefinished",