STARRYSONATA'S PROFILE

Please excuse me if this isn't the place for this, or if I'm in the wrong (this is my first time ever commenting on anything)... but this is the only game I'm having this problem with!

When I try to begin the game by clicking on the application, I get the message "RPG Maker 2003 Run Time Package is not present or is not registered".

I didn't know if I was the only one having this problem with this game or if anyone else did. Or possibly if anyone knew how to fix it? I have downloaded the RTP (and uninstalled and re-downloaded twice), so I'm not sure where to go from here? I've been reading what an amazing game this is, so I'm actually really excited to try it!

Thank you for taking the time to read this!!