Images are not showing properly

I am using this app. In some files app is not showing media files like images. Could you please check it out. I am attaching the file downloadable link. Kindly check it out.
https://mega.nz/file/O5VxxBiL#CveOno0WBV1fg8lAET8uxdcCd6aNHNQ5rQU9WCdo1A0