ACF loops false value with repeater and checkbox

From ACF Documentation:

/*
* Conditional Statement
*/

if( get_field('field_name') )
{
    echo "do something";
}
else
{
    echo "do something else";
}

So…to check if something is “NOT” checked is just the else of the above.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)