Today I purchased 3D FlipBook WordPress Plugin Pro Edition, but the .zip file, is not working, Wordpress send me this "Something is wrong". I have been try several times and was impossible. My wordpress version is Versión 5.4.1. Someone, please, help me. Thank you.
You install a wrong zip. Remove the light version. Extract the paid archive and install the archive from the 'dist' catalog in the extracted folder.