Login to Norton Account not possible

I cannot login to Norton Account - an window with text "Sorry, An error has occurred on the serve" appears

I have made already several attempts

Yesterday I login without problem, also using reset password functionality even - as I just learnt from the Forum - it was a maintenance break

Time when I was login last time : Nov 10th ca. 23:00 CET (22:00 GMT)

Time I am not able to login since Nov 11th 10:30 CET (9:30 GMT) till now (11:00)