Lightroom doesn't open on Mac

[defaulto1ics39h01ro]

Hey,

i just purchased Lightroom and downloaded it. Everything was fine until i wanted to open LR. Everytime i try to open it, there's an error message. I'm using a MacBook Air 2010 and macOS Mojave 10.14.2. I'm really looking forward to your help since i'm really desperate://

[JohanElzenga]

Maybe you should tell us what the error message says?