[Army]

try edit:

pawn Код:

format(string, sizeof(string), "SELECT * FROM 'users' WHERE 'username' = '%s'", name); 
to:
format(string, sizeof(string), "SELECT * FROM `users` WHERE `username` = '%s'", name);

format(string, sizeof(string), "INSERT INTO 'users' ('username', 'password') VALUES ('%s', '%s')", name, inputtext); 
to:
format(string, sizeof(string), "INSERT INTO `users` (username, `password`) VALUES ('%s', '%s')", name, inputtext);

format(string, sizeof(string), "SELECT * FROM 'users' WHERE 'username' = '%s' AND 'password' = '%s'", name, inputtext); 
to:
format(string, sizeof(string), "SELECT * FROM `users` WHERE `username` = '%s' AND `password` = '%s'", name, inputtext);

edit: btw better to use MD5 coding for passwords, for example:

pawn Код:

format(string, sizeof(string), "INSERT INTO `users` (username, `password`) VALUES ('%s', MD5('%s'))", name, inputtext);

format(string, sizeof(string), "SELECT * FROM `users` WHERE `username` = '%s' AND `password` = MD5('%s')", name, inputtext);