[DeadAhead]

Change the name variable to namez or something.

new
namez[24],
text[120];

Код:

GetPlayerName(playerid, namez, sizeof(namez));
format(text, sizeof(text), "Welcome to Bogdan's Stunt server. \n\n{FBFF00}Name: %s{FFFFFF}\n\nPlease enter your password below in order to register: \n", namez);

Edit: Info, that warrning says there is already a name varaible in your script