Why am I seeing this since today?

[Ambareesh31771262fn3s]

When Im trying to add media.  

[thejanebradbury]

There is a size limit for uploading images and you might be hitting that. On the Adobe Express system requirements page, scroll down and you'll see a table of technical requirements for uploading images.

https://helpx.adobe.com/express/system-requirements.html

Here's a screenshot as well: