This is reopening this previous ticket... https://toolset.com/forums/topic/toolset-types-seems-to-be-corrupt-sorry-you-are-not-allowed-to-access-this-pa/
I just went back into the site and now I noticed that the LAYOUTS link is missing from the left navigation bar.
I don't know how to reestablish access to this area so that I can create new layouts.
If I go to the main TOOLSET Dashboard and scroll down to a CPT that already has a layout and I try to click on that layout, I get a "Sorry, you are not allowed to access this page." error.
Seems like access roles are really messed up somewhere.
Just as an FYI... I have a plugin installed called Sprout Invoices. It is a plugin that helps creates Estimates and Invoices.
I don't know if this is causing the issue or not.
If I delete or disable the plugin the issue still remains. However, I was suspecting that somehow this plugin may have created a new hidden "role" and messed up access in other areas. If you notice, the Invoices and Estimates custom post types are missing from the TOOLSET >> Post Types listing area
Maybe Sprout is doing things that conflict with TOOLSET?? Just a thought.
I completely removed the LAYOUTS plugin and deleted it...
Then I downloaded it again from your Legacy Downloads section and reinstalled it.
Now everything seems fine.