'Excerpt' in posts is not showing in full content after regenerating thumbnails

Hi everyone,
the front page have to be face of your website ..

A few weeks ago I had a problem with two new images, when I wanted to put them in my posts , the page excerpt ( the circles ) wasnt showing in his full size. So, after sugest of member of this forum, I have instaled a plugin to regenerate thumbnails, and the crash become worst.
Half of my ‘excerpts’ has reasized ( in not full circles ).
After this crash, I decide to deactivate the plugin.
After that i tryed to repost the same images, and nothing changed.
After that I post a completly one new image, and was everything ok with this image.
I also reinstall Customizr, the same version, but nothing changed.

And the problem is how can I get back my old images (my old posts) to the level as they were before regenarating thumbnails ( the whole circles)?
Please help, https://www.gobelins.co