Fail to open file

Error message appears in secured folder as screen shot 

Anyone one know the reason and solution ? 

  IMG_1323.JPG IMG_1322.JPG

it looks like there is some issue encrypting the file. Does this only happen with that particular file or are other files affected as well? If it is only that file it may be a corrupted file issue. 

My files wont open either, exactly like the picture abow. My whole life pictures are on that USB stick. What can I do??