diff --git a/src/components/auth/activation/activation.scss b/src/components/auth/activation/activation.scss
index 22a4895..655c25f 100644
--- a/src/components/auth/activation/activation.scss
+++ b/src/components/auth/activation/activation.scss
@@ -19,6 +19,7 @@
 }
 
 .activationCodeInput {
+    composes: darkTextField from 'components/ui/form/form.scss';
     composes: blueTextField from 'components/ui/form/form.scss';
 
     text-align: center;
diff --git a/src/services/errorsDict.js b/src/services/errorsDict.js
index f02a5ee..620a9cd 100644
--- a/src/services/errorsDict.js
+++ b/src/services/errorsDict.js
@@ -31,11 +31,15 @@ const errorsMap = {
     ),
 
     'error.username_required': () => <Message {...messages.usernameRequired} />,
+    'error.username_invalid': () => <Message {...messages.usernameInvalid} />,
+    'error.username_too_short': () => <Message {...messages.usernameTooShort} />,
+    'error.username_too_long': () => <Message {...messages.usernameTooLong} />,
     'error.username_not_available': () => <Message {...messages.usernameUnavailable} />,
+
     'error.email_required': () => <Message {...messages.emailRequired} />,
+    'error.email_too_long': () => <Message {...messages.emailToLong} />,
     'error.email_invalid': () => <Message {...messages.emailInvalid} />,
     'error.email_is_tempmail': () => <Message {...messages.emailIsTempmail} />,
-
     'error.email_not_available': () => (
         <span>
             <Message {...messages.emailNotAvailable} />
diff --git a/src/services/errorsDict.messages.js b/src/services/errorsDict.messages.js
index 0bea008..c4afaeb 100644
--- a/src/services/errorsDict.messages.js
+++ b/src/services/errorsDict.messages.js
@@ -46,6 +46,21 @@ export default defineMessages({
         defaultMessage: 'Username is required'
     },
 
+    usernameInvalid: {
+        id: 'usernameInvalid',
+        defaultMessage: 'Username is invalid'
+    },
+
+    usernameTooShort: {
+        id: 'usernameTooShort',
+        defaultMessage: 'Username is too short'
+    },
+
+    usernameTooLong: {
+        id: 'usernameTooLong',
+        defaultMessage: 'Username is too long'
+    },
+
     usernameUnavailable: {
         id: 'usernameUnavailable',
         defaultMessage: 'This username is already taken'
@@ -61,6 +76,11 @@ export default defineMessages({
         defaultMessage: 'Email is invalid'
     },
 
+    emailToLong: {
+        id: 'emailToLong',
+        defaultMessage: 'Email is too long'
+    },
+
     emailIsTempmail: {
         id: 'emailIsTempmail',
         defaultMessage: 'Tempmail E-mail addresses is not allowed'