I tried the sugestions from your link. It not work for me. I readed the post carefully and do all what it described in "reply #1". Not work. Then I tried do all things which described in "reply #9". But can't do it. I can't register new memeber. I fill all fileds, enter veryfication code .... and field with password make empty and the images for veryfication code change. And such all time. I have another one my login to my website as the user. But also use this login and good password I have problems with logging. Today for about 50 tries I logged only 1 times !!!!! And it was the first time from a lot of weeks. Change my admin password as sugested in post from link gave me only one change - when I'm on Error Site or any other subsites and try login as admin, I go to my home site. Haven't get error message.
And the last info - minutes ago I change password to my another user login for admin password. Also not working and also start come back to home page everytime.
Any idea what I can do with it ?
PS. I just seen that my vistiors write me about problems with register as new user in Januray in my Guest Book. I don't know what happen with my website but I would like it start work properly again.