Hik camera down

Hi all, I have three Hik camera's all are showing no video I was seeing if anything could be done via the Hik connect app when I got a text from Ezviz asking me to input a verification code I went back to my Hik connect app and put the verification code in but it would not accept the code . Is there any way I can get a new code as this one has expired and any help to get my camera's up and running would be of great help
Thanks.
trev