Adobe Premiere Elements is not letting me import files I used to be able to import!

I really hope someone can help me, I tried reaching out to Adobe and was told I had to pay them, even though I paid for the product. I use Adobe Elements 2018... and I used to be able to import these files; WAV files, photos downloading from Google images. But now, I get an error message saying 'this type of files is not supported or the required codec is not installed'

Now, I never got this problem before, but I recently got a new PC and re-installed the program, and the issue has been happening since then! I am not sure how to fix this issue or how to install these required codecs! PLEASE HELP!