Help,PowerPoint file damaged

I got an error message that the PowerPoint file is corrupted, but it still can be opened (error Message attached). I tried to re-save the file, but even then I could not what to change, because the program shows "not responding". Any ideas as to what is causing this? and how can I fix it?

Error MSG: PowerPoint can't display some of the text, images, or objects as slides in the file.

 

Doesn't look like a vouch thread so I have moved it to the right section.

 

good day to you, you can try to use the method restore using a backup , or to apply to this program which repair ppt file, you can find here . I hope I helped you ! Good luck!!!