Thank you so much Circular, yes its now okay when I use version 130 for GLSL.
I did not use GLSL 120 because it gave me the following error in the SS attached.
Now I need to try implement horizontal and vertical shaders in one shader, and then need to test other blurs like fast blur in GLSL, to have the blurs in lazpaint, which are a bit more soft and beautiful, I need to check them out.
Regards