diff --git a/server/31/Nextcloud_Server_Administration_Manual.pdf b/server/31/Nextcloud_Server_Administration_Manual.pdf
index c2c5f263f75..792582ebed4 100644
Binary files a/server/31/Nextcloud_Server_Administration_Manual.pdf and b/server/31/Nextcloud_Server_Administration_Manual.pdf differ
diff --git a/server/31/Nextcloud_User_Manual.pdf b/server/31/Nextcloud_User_Manual.pdf
index 1a477a5510c..ae4c891eec8 100644
Binary files a/server/31/Nextcloud_User_Manual.pdf and b/server/31/Nextcloud_User_Manual.pdf differ
diff --git a/server/31/developer_manual/exapp_development/tech_details/Authentication.html b/server/31/developer_manual/exapp_development/tech_details/Authentication.html
index eaa493c6bcd..525634d0721 100644
--- a/server/31/developer_manual/exapp_development/tech_details/Authentication.html
+++ b/server/31/developer_manual/exapp_development/tech_details/Authentication.html
@@ -28,7 +28,7 @@
       <script src="https://unpkg.com/d3/dist/d3.min.js"></script>
       <script>
                 window.addEventListener("load", function () {
-                  var svgs = d3.selectAll(".mermaid#id-59ed444c-f13b-4d30-8031-6f2b32bfb780 svg");
+                  var svgs = d3.selectAll(".mermaid#id-84e87d13-495d-4abe-8a75-9c0c19af155d svg");
                   svgs.each(function() {
                     var svg = d3.select(this);
                     svg.html("<g>" + svg.html() + "</g>");
@@ -172,7 +172,7 @@ <h2>Authentication flow<a class="headerlink" href="#authentication-flow" title="
 </ol>
 <section id="authentication-flow-in-details">
 <h3>Authentication flow in details<a class="headerlink" href="#authentication-flow-in-details" title="Link to this heading"></a></h3>
-<div id="id-59ed444c-f13b-4d30-8031-6f2b32bfb780" class="mermaid">
+<div id="id-84e87d13-495d-4abe-8a75-9c0c19af155d" class="mermaid">
             sequenceDiagram
     autonumber
     participant ExApp
diff --git a/server/31/user_manual/cs/groupware/sync_ios.html b/server/31/user_manual/cs/groupware/sync_ios.html
index 97a9a673a8d..627f480927d 100644
--- a/server/31/user_manual/cs/groupware/sync_ios.html
+++ b/server/31/user_manual/cs/groupware/sync_ios.html
@@ -162,7 +162,7 @@ <h2>Kontakty<a class="headerlink" href="#contacts" title="Link to this heading">
 <p class="admonition-title">Poznámka</p>
 <p>Od verze iOS 12 je SSL šifrování nezbytné. Proto <strong>nevypínejte</strong> <strong>SSL</strong> (Z tohoto důvodu je pro vaši doménu zapotřebí certifikát, postačí i ten ze služby <a class="reference external" href="https://letsencrypt.org/">https://letsencrypt.org/</a> ).</p>
 </div>
-<p>Pokud to ani tak nefunguje, podívejte se do příručky <a class="reference external" href="https://docs.nextcloud.com/server/31/admin_manual/issues/general_troubleshooting.html#troubleshooting-contacts-calendar">Řešení problémů s kontakty a kalendářem</a> nebo <a class="reference external" href="https://docs.nextcloud.com/server/31/admin_manual/issues/general_troubleshooting.html#service-discovery">Řešení problémů s objevováním služby</a>.</p>
+<p>Pokud to ani tak nefunguje, podívejte se do příručky <a class="reference external" href="https://docs.nextcloud.com/server/31/admin_manual/issues/general_troubleshooting.html#service-discovery">Řešení problémů s kontakty a kalendářem</a> nebo <a class="reference external" href="https://docs.nextcloud.com/server/31/admin_manual/issues/general_troubleshooting.html#troubleshooting-contacts-calendar">Řešení problémů s objevováním služby</a>.</p>
 </section>
 </section>
 
diff --git a/server/31/user_manual/fr/groupware/sync_ios.html b/server/31/user_manual/fr/groupware/sync_ios.html
index a4405c841d9..74a27e78f59 100644
--- a/server/31/user_manual/fr/groupware/sync_ios.html
+++ b/server/31/user_manual/fr/groupware/sync_ios.html
@@ -162,7 +162,7 @@ <h2>Contacts<a class="headerlink" href="#contacts" title="Lien vers cette rubriq
 <p class="admonition-title">Note</p>
 <p>À partir de iOS 12, un cryptage SSL est nécessaire. Par conséquent, ne désactivez pas le <strong>SSL</strong> (Pour cette raison, un certificat est requis pour votre domaine,  comme <a class="reference external" href="https://letsencrypt.org/">https://letsencrypt.org/</a> ).</p>
 </div>
-<p>Si cela ne fonctionne toujours pas, regardez dans <a class="reference external" href="https://docs.nextcloud.com/server/31/admin_manual/issues/general_troubleshooting.html#service-discovery">Dépannage des contacts et calendriers</a> ou <a class="reference external" href="https://docs.nextcloud.com/server/31/admin_manual/issues/general_troubleshooting.html#troubleshooting-contacts-calendar">Dépannage de la découverte de service</a>.</p>
+<p>Si cela ne fonctionne toujours pas, regardez dans <a class="reference external" href="https://docs.nextcloud.com/server/31/admin_manual/issues/general_troubleshooting.html#troubleshooting-contacts-calendar">Dépannage des contacts et calendriers</a> ou <a class="reference external" href="https://docs.nextcloud.com/server/31/admin_manual/issues/general_troubleshooting.html#service-discovery">Dépannage de la découverte de service</a>.</p>
 </section>
 </section>
 
diff --git a/server/31/user_manual/sr/groupware/sync_ios.html b/server/31/user_manual/sr/groupware/sync_ios.html
index a24f92ea364..9e9d4b35c29 100644
--- a/server/31/user_manual/sr/groupware/sync_ios.html
+++ b/server/31/user_manual/sr/groupware/sync_ios.html
@@ -162,7 +162,7 @@ <h2>Contacts<a class="headerlink" href="#contacts" title="Link to this heading">
 <p class="admonition-title">Белешка</p>
 <p>Почевши са iOS 12 неопходно је SSL шифровање. Стога <strong>немојте</strong> да искључите <strong>SSL</strong> (Из овог разлога је потребно да ваш домен има сертификат, <a class="reference external" href="https://letsencrypt.org/">https://letsencrypt.org/</a> ће бити довољно).</p>
 </div>
-<p>Ако још увек не функционише, Погледајте <a class="reference external" href="https://docs.nextcloud.com/server/31/admin_manual/issues/general_troubleshooting.html#troubleshooting-contacts-calendar">Решавање проблема са  Contacts &amp; Calendar</a> или <a class="reference external" href="https://docs.nextcloud.com/server/31/admin_manual/issues/general_troubleshooting.html#service-discovery">Решавање проблема са откривањем сервиса</a>.</p>
+<p>Ако још увек не функционише, Погледајте <a class="reference external" href="https://docs.nextcloud.com/server/31/admin_manual/issues/general_troubleshooting.html#service-discovery">Решавање проблема са  Contacts &amp; Calendar</a> или <a class="reference external" href="https://docs.nextcloud.com/server/31/admin_manual/issues/general_troubleshooting.html#troubleshooting-contacts-calendar">Решавање проблема са откривањем сервиса</a>.</p>
 </section>
 </section>