"No Access" gray screen, where to go from there

[TTN]

I have a standalone solution created for both Mac and Win with two levels of user groups. I set the access permissions so that Group 1 can see all 9 layouts and Group 2 can only see 3 of the 9. However, both can see all the buttons that take them to certain layouts. My problem is that when people in group 2 click on a button that is supposed to take them to a restricted layout, a completely gray screen appears with "<<No Access>>" in boldfaced and italics. They cannot navigate anywhere else after that and have to quit and come back into the solution. Anyone have any advice on how they can just return to the previous layout?

[-Queue-]

Test group permissions at the beginning of the applicable scripts.

If [not Position( "

[TTN]

Thank you. I just tried it but it keeps trying to read

"

[-Queue-]

Change the semicolons to commas. My bad.