java - runnable Jar file not working,first to third exports is working but several exports dont -

This has been done for 2 hours for googling, what could be the problem of the exported jar file from my expleps.

My first export is not the first problem and my jar file is not run. But in many exports, the generated jar file is not working already help. please.

I have JR and JDK installed. My environment variables are fine.