This problem happen because of your hosting server minifying the codes or your ftp client working on ASCII mode. You can see an error on the page like T_SL … or you can see a blank page after the install if WP_DEBUG not enabled.

Please change your ftp client settings to binary mode then re upload Point Finder.
You can find a video below for binary mode instruction.

How can you upload files with binary mode:(Please watch below video. This will shows binary mode upload.)