diff --git a/src/App.tsx b/src/App.tsx
index 0b1b24b00..4bdfcda62 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -34,7 +34,7 @@ export const App = () => {
     getUsers()
       .then(setUsers)
       .catch(usersLoadingError => {
-        setError('usersLoadingError');
+        setError(`usersLoadingError ${usersLoadingError}`);
 
         throw usersLoadingError;
       });
@@ -52,8 +52,7 @@ export const App = () => {
       getPosts(selectedUser.id)
         .then(setPosts)
         .catch(loadingError => {
-          // setError(true);
-          setError('postsLoadingError');
+          setError(`postsLoadingError ${loadingError}`);
 
           throw loadingError;
         })
diff --git a/src/components/NewCommentForm.tsx b/src/components/NewCommentForm.tsx
index 6174d94c6..e9c33ad64 100644
--- a/src/components/NewCommentForm.tsx
+++ b/src/components/NewCommentForm.tsx
@@ -95,7 +95,7 @@ export const NewCommentForm: React.FC<Props> = ({
             id="comment-author-name"
             placeholder="Name Surname"
             className={classNames('input', {
-              'is-danger': false,
+              'is-danger': hasErrorMessage.nameError.length > 0,
             })}
             value={commentData.name}
             onChange={event =>
@@ -139,7 +139,7 @@ export const NewCommentForm: React.FC<Props> = ({
             id="comment-author-email"
             placeholder="email@test.com"
             className={classNames('input', {
-              'is-danger': false,
+              'is-danger': hasErrorMessage.emailError.length > 0,
             })}
             value={commentData.email}
             onChange={event =>
@@ -182,7 +182,7 @@ export const NewCommentForm: React.FC<Props> = ({
             name="body"
             placeholder="Type comment here"
             className={classNames('textarea', {
-              'is-danger': false,
+              'is-danger': hasErrorMessage.bodyError.length > 0,
             })}
             value={commentData.body}
             onChange={event =>
diff --git a/src/components/PostDetails.tsx b/src/components/PostDetails.tsx
index c9a8b2f7f..f17544df4 100644
--- a/src/components/PostDetails.tsx
+++ b/src/components/PostDetails.tsx
@@ -43,7 +43,7 @@ export const PostDetails: React.FC<Props> = ({
         });
       })
       .catch(loadingError => {
-        setError('commentAddError');
+        setError(`commentAddError ${loadingError}`);
 
         throw loadingError;
       })
@@ -59,8 +59,9 @@ export const PostDetails: React.FC<Props> = ({
         : [],
     );
 
-    deleteComment(commentId).catch(() => {
-      setError('commentDeletingError');
+    deleteComment(commentId)
+      .catch(deletingError => {
+      setError(`commentDeletingError ${deletingError}`);
     });
   };
 
@@ -72,7 +73,7 @@ export const PostDetails: React.FC<Props> = ({
     getComments(selectedPost.id)
       .then(setComments)
       .catch(loadingError => {
-        setError('commentsLoadingError');
+        setError(`commentsLoadingError ${loadingError}`);
 
         throw loadingError;
       })