"Using this app without proper knowledge WILL Harm your device and you will get many issues. So, please read our instructions carefully before using it."
The only instructions I can find without downloading the APK say that you should back-up your Google Play app before modifying it, so you can reinstall it later if needed. Otherwise you will no longer be able to get updated versions.
Lucky patcher appears to have caused your system to no longer check with Google playstore whether an in-app purchase has been paid for.
Since DroidScript does not just ask Google for authorisation but uses a mechanism that checks playstore purchases that is specific to downloading (when you need to be online) this no longer works.
I suggest you reinstall your backed up Google Play APK, then use Google Play itself to update it.