Can't insert image - a bug appears

Hello!

I can't insert an image into my comment. I tryed to insert an image in different topics. When I click "insert/edit image", then "Browse" - no images download. An error window appears that says: Critical JSON failure: ERR_NOT_JSON

I also can't upload an image.

I have just noticed this problem because everything was fine a few days ago.

I tryed in Opera 10.53 and Internet Explorer 8 and deleted all cache files. I also switched off my anti-virus software. Nothing helps.

Please help me to solve this problem!

Thank you!

Everyone's hitting this CRITICAL JSON FAILURE - see posting-images.

Ok, thank you. I didn't see that topic - that's why I created a new one  Now I see that a lot of users have the same bug. Hope it will be fixed soon.