Cant install anything on 3 different hosts.....

I have different webpages, and they all say that i cant install any plugins.....
On the Dashboard my name is gone and says [name] and it seems like you are having some serious trouble....i have some plugins i need to install but it is not possible at all it seems....

3 different hosts on 3 different providers....not working seems to be something at your end and not mine....