Just one actor logs

I developed a diagram with a main pool and a subprocess with 3 lanes.
I defined three actors. But just the first actor logs automatically in the portal, with all the tasks.
And when I try to log with the second actor in the Portal this message appears: “Access denied: “you do not have the rights to view this page.””
What can I do in order to all actors log in their tasks?

Thank you in advanced

Did you choose actor for every task and swimlane? Click on the task, go to Actors, check what is written. It should be something like “use the actor defined in lane (Actor 1)”. Make sure that in brackets are written different actors for each task (if you want them to be different).

If you can provide some picture, that would be good, coz I am not sure if i understood question.