Can't create New Item

[Rusty Sapper]

I am running Jenkins version 2.303.3.  we recently moved the jenkins master from jdk 8 to jdk 11.  However, since that move, we are unable to add any new projects or folders thru the GUI.  when the "New Item" link is clicked, Jenkins just produces a blank page.

Anyone else experienced this behavior?  any help would be appreciated.

Thanks,

Rusty Sapper