Problemas with imagens loading – htaccess problem?

Hi everyone!

Yesterday and today I had some problems with uploading images for my website (HTTP Error) and looking on some troubleshooting foruns, some people were saying that i needed to change my htaccess file – And i did it.
But then the site was down and I was all day trying to repair this problem. Now it’s ok, but now my imagens are lot appearing on blog posts.

For example, on my homepage (https://www.communitymanager.pt/) everything is ok, and on this one too: https://www.communitymanager.pt/blog/

But in all my blog post the images are not loading – not even on the backoffice on my new and old blog posts (here 1 example: https://www.communitymanager.pt/como-usar-o-linkedin-para-vender/).

Any idea? I’ve already desactivated all plugins and changed the theme for the twentyeleven and nothing!

I search all over the web and tried a lot of things but I run out of ideas.

It would be great if someone could help me.

Thanks in advance!