Elementor 2.0.1 does not open

Hello,

i’m using worpress 4.9.4-de_DE with elementor 2.0.1.

it is basicly a one page website. if i open elementor, a white page occurs – with no content, and also no error massage. that problem only occurs on my “big front page”. if i open elementor at a subpage (popup boxes, …) it works perfect.
the website itself also works perfect.

does anybody have an idea whats the problem, or how to solv the problem?

thank you very much!