Invalid Parent Path in Archive

The following worked for me and I had the same invalid parent path error using a 256gb sandisk USB encrypted drive knowing my password was correct. I opened the secure vault folder and renamed the index.dat file to indexdat (removing the dot “.”). I launched the sandisk secure vault executable and entered my password. I got logged in and got a index.dat error message asking if I wanted to repair. I said yes. After an exhausted repair process (about 2 hours) it repaired it and all my files were accessible again.