I just had problems too, in fact I had them earlier as well.

My browser did an up date and I cleared history and managed to log in.

Hi Soso! Please forward this request to our technical specialists through the "Ask a question" button by following the link: https://vikingsweb-support.plarium.com

Our specialists will surely assist you! 

how i can when cant log in Plarium ?

Though I would agree the log in is problematic. Still won't  work on Google, just like it stopped working on Edge. just waiting for it to stop working altgether on Firefoxx, then I am finally done,after prestdigitation about the reality of the game.(no not going to contact support either)

 Mystified  by your 'I can't log on to Plarium' ,as the Forum is also Plarium, and you have written here.

you can make ticket from Forum ? 

Try here.

https://vikings-support.plarium.com/web/en/tickets/create