Thanks to all! I have permission again now!
to Kennel: I can't use shell string (I try to do something but I don't know is it or something else make me admin again).
I insert this string, wich Kennel told me, in install.php, reload it on server and run. So, there was some error - as I remember - parser error or something else, i don't know. Then I reload again on server normal install.php and then I run it he told, that base alredy criated and go to index.php (like anytime before then I restarting install.php).
So, I dont know by what but then I was enterd as admin next time, and write correct url in admin/options my changes was saved!!! Halleluyaa!!!!!
Ps. thanks to all, and... I need to read some books