i see a space in your run string after the extension. Also, do you have this button set to run on the server or client (you are going to want client)?

I have set it to run on server and I also tried removing the space and I m still getting the same error 

If your intention is to display the application (exe) to the user, you cannot have it set to execute on the server.

Also, are you sure the path is correct?

Have you clicked "Info" on the error msg and looked at the line number indicated to verify which line is causing the error?

I am running the same script on a different environment or sage 100 and it's working fine , I will to set it as run on client 

take a look at my answer to this post for more info.

https://sagecity.na.sage.com/support_communities/sage100_erp/f/sage-100-business-object-interface/100318/problem-opening-a-pdf-with-script/279675#279675

also, if working in a different environment, is there a reason you have this running on the server, such as needing to use oBusObj or another business object to get values?

Is the "Allow External Access" checkbox checked in company maintenance for the company you are running this under?

I am using BusObj and that's not causing any issue, i am able to read the date using the script  and Allow External Access is checked in the company mainteance

If using oBusObj, you will need the script to run on the server. So you will have to refer to my post in the link i included in my earlier post. You also haven't answered some of my other questions about verifying the path is reachable from the server and if you have tried clicking the "info" button and verifying the line specified (line 50) is your ss.Run line. Can you post the contents of the "info"?

If using oBusObj, you will need the script to run on the server. So you will have to refer to my post in the link i included in my earlier post. You also haven't answered some of my other questions about verifying the path is reachable from the server and if you have tried clicking the "info" button and verifying the line specified (line 50) is your ss.Run line. Can you post the contents of the "info"?

line 50 is ss.run

and in the info i did not find any more info about what kind of error it is