Server opening

Hey Aternos!
I'd like to know why when i confirm the opening of my server it starts loading,and it load for a long time,so long that the server closes again! and also,the confirmations message doesn't appear to me,i need to keep reloading the page!
Is it a bug or is it something wrong on my browser?!

<- It is this one,HardCraftCK

Hm,strange,the next time i'll printscreen this problem,it happens 75% of the cases to me,i do not know why.