Apologies for this inconvenience.
I would request you to please attach the screenshot of your issue.
Also, is the text in the menus very small to read or is there no text in the menus?
I have the same issue with PSE11, first noticed yesterday. There's are many reports of this issue online and several threads in the forum on this subject.
I reinstalled PSE11 yesterday, which temporarily resolved the issue, but today all dropdown menu are missing any text.