says it installs via FTP version 2.3.2 of Moodle. FTP has been known to hicup and not transfer all files ... plus permissions on files/folders have to be set appropriately for the hosting providers system (not all, of which, are alike).
Also says to contact them if there are issues. Now I know that means you are now in the middle ... between hosting provider and simple scripts/community support and then using this community for support.
Hmmmmm ... not a good position to be in. The only persons here that would know for sure would have to have used the same script with the same hosting provider. The rest of us can only provide best/educated guess based upon information shared/provided. Don't be surprised if there are more questions than answers here because of that.
'spirit of sharing', Ken