i set up the script and when i click start it immediately logs me out and just sits at the log in screen.

Contact the script writer if you're experiencing issues with a certain script. 
Make sure you're following the instructions, if any are provided.

52 minutes ago, Mike n Iked said:

i set up the script and when i click start it immediately logs me out and just sits at the log in screen.

What script is it? you probably don't have the req items?

42 minutes ago, RawrChad said:

What script is it? you probably don't have the req items?

its the APA Rooftop Agility i have 36 agility and i set it to the varrock course 

 

6 minutes ago, Mike n Iked said:

its the APA Rooftop Agility i have 36 agility and i set it to the varrock course 

 

Take a look at the logger (Options -> Toggle logger) when you run the script. Most scripts spit it a reason when they stop themselves.

 

Then reply to the APA Rooftop Agility thread in Premium Scripts -> Agility because chances are only Apaec can help you.