did you sign in to your wallet from two different devices?
they might have locked it automatically to prevent losing your coins in case your wallet was compromised. there must be an email in your inbox about this.
if it is not fixed in 209 min send them a ticket and investigate the reason.
yeah i used two devices, i open it on my mobile and my PC but it's usually no problem until today.
it makes sense now, i'll send a ticket to them now.
This error occurred because of a failure password
If you fail to enter the password as many as 10 x I will be locked while, if it was not you who did that mean someone knows your indetifier code
i'm sure didn't make that 10x wrong password because i saved it on my browser.
And if someone knows your identifier code he is trying to bruteforce and find your password, I hope you have a long secure password together with 2FA setup, otherwise I would be worried if its not been you who put 10 x wrong the password.
this wallet contains not much coins usually so i didn't set 2FA , i am worry too that my wallet was bruteforced by someone, but since there's only little amount bitcoin stored i think it's not worth to do it but who knows.
Thanks everyone. i'll update my stats later.