Solid inspector problem short edges

don’t know how to corrects these

Ignore them. The only way they can stop being short edges is if you make them longer but that would change the object.

What is it you’re modeling? How will it be used.

From the image, it does not look like the content of your model is a solid in any case. So, solid inspector’s report is like a warning of what could be a problem if you do make a solid by adding more geometry, not necessarily an error in the model as is.

The usual way to deal with short edges is to create or edit a scaled up version of the object and scale it back to the real size when finished (see also “the Dave Method” - search the forum).