Question about Gesior MySQL

[MrLipzZz]

So, friends, 2 years ago, i passed per a problem, that, players, characters, got the same "ID" ,and, they can enter in another houses, due to duplicated id..
So.
I could see, in Gesior MySQL, on the script CreateAccount.php
This

$number = $reg_account->create(0, 9999999, $reg_name);

This is about the ID of the account in MySQL ?
cous when i open my table Accounts in SQL
i see the ID's "5245450" "5332400"

have some risk to create duplicateds account ids?
If yes, how i can fix it?
To create account in Sequence?

1,2,3,4,5 etc..

Thanks

Sry my inglish.