It says Qe6 as the top move. However, Qe6 will be a check, which means it should be Qe6+
Yes, it should have a +. Unfortunatly I have no idea what to do here. Id say report bug or ask other people like @Martin_Stahl, hes pretty active and helpful.
Probably just an issue with the Opening tab. Explorer shows Qe6+
It says Qe6 as the top move. However, Qe6 will be a check, which means it should be Qe6+