3D FlipBook - Missing PDF - wrong URL due to the use of WP HIDE Plugin (rewriting folder's names)

Hello !

I have WP HIDE plugin installed → "wp-content" folder has become "newname" folder ;

Problem : 3D FlipBook is looking for files (PDF for instance) in .../wp-content/file.pdf, instead of .../newname/file.pdf, and I get a "missing file..." error :(

Is it possible for me to make some changes in the 3D FlipBook files – or in functions.php theme ? – in order to solve my problem ?

Thank you !