Not working

Hi,
Just tried this plugin and it doesnt work. I get the Expenses>Settings and Expense report links in the main left panel in dashboard.
These work although there are no expenses yet and the settings just displays a tax rate setting.

There is an expenses link in the NEW tab along with post and page and media etc. When I click I get a clear page with “Sorry, you are not allowed to create posts as this user.” I notice there is no wordpress admin bar along the top of the page.

I can off course create normal posts and pages with the other links. When I select posts or media or page I get the create page which stays with the wordpress top admin bar present.

It appears to me that the expenses create link is maybe somehow jumping out of wordpress and therefore not being able to read the user access level. (Maybe?)

I have tried different user levels and different versions of wordpress.

Can you help?
Thanks