diff --git a/dev/META6.json b/dev/META6.json
index bef7afa0..393e18d5 100644
--- a/dev/META6.json
+++ b/dev/META6.json
@@ -1,7 +1,7 @@
 {
   "name": "Agrammon",
   "description": "Simulation model for calculating ammonia and Nx/NOx emissions from agriculture.",
-  "version": "6.4.1",
+  "version": "6.4.2",
   "perl": "6.*",
   "authors": [
     "Fritz Zaucker <fritz.zaucker@oetiker.ch>",
diff --git a/frontend/source/class/agrammon/module/dataset/DatasetTool.js b/frontend/source/class/agrammon/module/dataset/DatasetTool.js
index bb5796ed..f8b5be0e 100644
--- a/frontend/source/class/agrammon/module/dataset/DatasetTool.js
+++ b/frontend/source/class/agrammon/module/dataset/DatasetTool.js
@@ -517,6 +517,7 @@ qx.Class.define('agrammon.module.dataset.DatasetTool', {
         this.__setDatasets = function() {
             // used for datasetFilter
             that.__datasets = this.__datasetCache.getDatasets();
+            if (! that.__datasets) return;
             var len = that.__datasets.length;
             if (len<1) return;
 
@@ -533,16 +534,17 @@ qx.Class.define('agrammon.module.dataset.DatasetTool', {
 
         this.__setTags = function() {
             var data = this.__datasetCache.getTags();
-                var len = data.length;
-                if (len<1) {
-                        return;
-                    }
-                var i, rec;
-                that.__availableTags = [];
-                for (i=0; i<len; i++) {
-                        rec = [ data[i] ];
-                        that.__availableTags.push(rec);
-                }
+            if (!data) return;
+            var len = data.length;
+            if (len<1) {
+                return;
+            }
+            var i, rec;
+            that.__availableTags = [];
+            for (i=0; i<len; i++) {
+                rec = [ data[i] ];
+                that.__availableTags.push(rec);
+            }
             availableTagsTm.setData(that.__availableTags);
             availableTagsTable.updateView();
         }; // this.__setTags()
diff --git a/frontend/source/class/agrammon/module/user/Login.js b/frontend/source/class/agrammon/module/user/Login.js
index 1abcf398..7bf9363e 100644
--- a/frontend/source/class/agrammon/module/user/Login.js
+++ b/frontend/source/class/agrammon/module/user/Login.js
@@ -21,7 +21,7 @@ qx.Class.define('agrammon.module.user.Login', {
         // content of the form elements if they appear inside a form AND
         // the form has a name (firefox comes to mind).
         var el = this.getContentElement();
-        var form = new qx.html.Element('form',null,{name: 'cbLoginform', autocomplete: 'on'});
+        var form = new qx.html.Element('form',null,{name: 'AgrammonLoginform', autocomplete: 'on'});
         form.insertBefore(el);
         el.insertInto(form);
 
diff --git a/frontend/source/class/agrammon/ui/dialog/Error.js b/frontend/source/class/agrammon/ui/dialog/Error.js
index 97baffe6..ff689a30 100644
--- a/frontend/source/class/agrammon/ui/dialog/Error.js
+++ b/frontend/source/class/agrammon/ui/dialog/Error.js
@@ -78,7 +78,7 @@ qx.Class.define('agrammon.ui.dialog.Error', {
         qx.event.message.Bus.subscribe('error', function(m) {
             var data = m.getData();
             that.setCaption(data[0]);
-            error.setLabel(data[1]);
+            error.setLabel(qx.locale.Manager.tr(data[1]));
             if (data[2] == 'info') {
                 error.setIcon(null);
             }
diff --git a/frontend/source/translation/de.po b/frontend/source/translation/de.po
index c054c0d3..62315176 100644
--- a/frontend/source/translation/de.po
+++ b/frontend/source/translation/de.po
@@ -50,7 +50,7 @@ msgstr "Inkrementeller Filter auf den Datensatz-Namen"
 msgid "Filter on dataset name"
 msgstr "Filter auf den Datensatz Namen"
 
-#: agrammon/ui/About.js
+#: agrammon/module/dataset/DatasetCreate.js
 msgid "Close"
 msgstr "Schliessen"
 
@@ -1000,11 +1000,7 @@ msgstr "Fehler in der Kommunikation mit dem Server"
 
 #: agrammon/module/user/Account.js
 msgid "Password must have at least 8 characters."
-msgstr ""
-
-#: agrammon/module/user/Account.js
-msgid "An activation link will be sent to you by eMail after pressing the button"
-msgstr ""
+msgstr "Das Passwort muss mindestens 8 Zeichen enthalten."
 
 #: agrammon/module/user/SelfService.js
 msgid "An activation link will be sent to you by eMail."
@@ -1020,4 +1016,8 @@ msgstr "Aktivierungslink geschickt an %1"
 
 #: agrammon/module/user/SelfService.js
 msgid "A confirmation link will be sent to you by eMail."
+msgstr "Ein Bestätigungslink wird Ihnen per eMail zugesendet."
+
+#: agrammon/module/user/Account.js
+msgid "An activation link will be sent to you by eMail after pressing the button"
 msgstr ""
diff --git a/lib/Agrammon/DB/User.rakumod b/lib/Agrammon/DB/User.rakumod
index 05a1ce5f..acafc37b 100644
--- a/lib/Agrammon/DB/User.rakumod
+++ b/lib/Agrammon/DB/User.rakumod
@@ -121,8 +121,6 @@ class Agrammon::DB::User does Agrammon::DB {
     sub get-password-key($username, $password) {
         my $digest = sha1-hex($username ~ $password ~ $secret);
         return $digest;
-        # only easily human readable characters
-        # return substr($digest ~~ tr/1/x/, 5, 6);
     }
 
     method get-account-key() {
@@ -186,8 +184,15 @@ class Agrammon::DB::User does Agrammon::DB {
             $key = self.get-account-key();
             $ret = $db.query(q:to/SQL/, $!username, $!firstname, $!lastname, $!organisation, %r<id>, $!password, $encrypt-key, $key );
                 INSERT INTO pers (pers_email, pers_first, pers_last,
-                                  pers_password, pers_org, pers_role, pers_newpassword, pers_newpassword_key)
-                VALUES ($1, $2, $3, gen_random_uuid(), $4, $5, encode(encrypt($6, $7, 'aes'), 'base64'), $8)
+                                  pers_password,
+                                  pers_org, pers_role,
+                                  pers_newpassword, pers_newpassword_key
+                                 )
+                VALUES ($1, $2, $3,
+                        gen_random_uuid(), -- random password until activated
+                        $4, $5,
+                        encode(encrypt($6, $7, 'aes'), 'base64'), $8
+                       )
                 RETURNING pers_id
             SQL
 
@@ -212,6 +217,7 @@ class Agrammon::DB::User does Agrammon::DB {
             SQL
 
             $!username = $ret.value if $ret.rows;
+            note "Account activated for $!username";
         }
         self.load if $!username;
         return self;
diff --git a/lib/Agrammon/Web/Routes.rakumod b/lib/Agrammon/Web/Routes.rakumod
index 35c33257..b0e2f5b7 100644
--- a/lib/Agrammon/Web/Routes.rakumod
+++ b/lib/Agrammon/Web/Routes.rakumod
@@ -519,7 +519,7 @@ sub application-routes(Agrammon::Web::Service $ws) {
                 }
                 CATCH {
                     .note;
-                    when X::Agrammon::DB::User::InvalidPassword  {
+                    when X::Agrammon::DB::User::InvalidLogin  {
                         forbidden 'application/json', %( error => .message );
                     }
                 }
diff --git a/lib/Agrammon/Web/Service.rakumod b/lib/Agrammon/Web/Service.rakumod
index 1f3598f6..e782e74f 100644
--- a/lib/Agrammon/Web/Service.rakumod
+++ b/lib/Agrammon/Web/Service.rakumod
@@ -456,7 +456,10 @@ class Agrammon::Web::Service {
         note "Account created for $email: activation key=$key";
         if not %*ENV<AGRAMMON_TESTING> {
             my $subject = "Agrammon account activation";
-            my $msg = "Click on the link to activate your Agrammon account: https://model.agrammon.ch/single/activate_account?key=$key";
+            # start link on new line to avoid . at beginning of second line
+            # of the encode string (seems to disappear in the received
+            # email) ... Fritz, 2025-01-14
+            my $msg = "Click on the link to activate your Agrammon account:\n\nhttps://model.agrammon.ch/single/activate_account?key=$key";
             Agrammon::Email.new(
                 :to($email),
                 :from('support@agrammon.ch'),
diff --git a/lib/Agrammon/Web/SessionUser.rakumod b/lib/Agrammon/Web/SessionUser.rakumod
index f73a4df8..5ee569fe 100644
--- a/lib/Agrammon/Web/SessionUser.rakumod
+++ b/lib/Agrammon/Web/SessionUser.rakumod
@@ -14,8 +14,7 @@ class Agrammon::Web::SessionUser is Agrammon::DB::User does Cro::HTTP::Auth {
         }
         else {
             $!logged-in = self.password-is-valid($username, $password);
-            die X::Agrammon::DB::User::InvalidPassword.new unless $!logged-in;
-
+            die X::Agrammon::DB::User::InvalidLogin.new unless $!logged-in;
         }
 
         self.set-username($username);