Post- processing of the image failed

I was trying to upload the image to see what I got. This is the first time since I have been working with www.remarpro.com Please advise what to do?
________________
Post-processing of the image failed likely because the server is busy or does not have enough resources. Uploading a smaller image may help. The suggested maximum size is 2500 pixels.
____________

I am working on my bonuses pages that I need to upload so many images. Please let me know what should I do? I need to solve it ASAP.

• This topic was modified 3 years, 7 months ago by Jan Dembowski. Reason: Moved to Fixing WordPress, this is not an Everything else WordPress topic