What is hep pending now every time i log in now i pus overview i must to log in again, again ,again and again

Clear cookies. Clear cache. Reboot.

i don't use anything i play legal and i don't wan't to lose my fleet for that

If your disconected by the account security guard it just means you were inactive too long so it automatically logged you out. It's nothing to worry about if this is the case.

look what i writed i am beeing disconected when i log in then i must to do it again and again but some times i can log in for 5 min and again wait but now some of my fleet is destroyed and thats not fair

Your avatar says it all man.
If you are being disconnected read what slash wrote.

yes what do i nead to clear i dont use anything i use Mozilla Firefox nothing more

Tools> Options> Privacy> Clear Now

Select Browsing History, Cookies, and Cache and clear them.