KeyError: None about guardrails HOT 9 CLOSED

<rail version="0.1">

<output>
    <object name="location_info">
        <string name="name" description="Location's name" />
        <choice 
            name="category"
            description = "The function of the location. This can be a 'restaurant', 'shop', 'parking_spot' or 'other'."
            format="valid-choices: {['restaurant', 'shop', 'parking_spot','other']}"
            on-fail="filter">
            <case name="restaurant">
                <object name="restuarant_info">
                    <string 
                        name="type_food"
                        description = "Which type of food do they serve here. Fit the answer in one of the following options: 'African', 'Asian', 'Dessert_Bakery', 'Friture', 'Mediterranean', 'Middle_Eastern', 'Western'."
                        format="valid-choices: {['African', 'Asian', 'Dessert_Bakery', 'Friture', 'Mediterranean', 'Middle_Eastern', 'Western']}"
                        />
                    <bool 
                        name="vegan" 
                        description="if the restuarant is vegan or not" 
                        />
                    <bool 
                        name="vegatarian" 
                        description="if the restuarant is vegatarian or not" 
                        />
                </object>
            </case>
            <case name="shop">
                <object name="shop_info"></object>
            </case>
            <case name="parking_spot">
                <object name="parking_spot_info"></object>
            </case>
            <case name="other">
                <object name="other_info"></object>
            </case>
        </choice>
        <email name="email" description="the email address of the location" on-fail="fix"/>
        <object name="address">
            <string name="street" description="the streetname of the location" on-fail="filter"/>
            <integer name="number" description="the streetnumber of the location" on-fail="filter"/>
            <integer name="postal_code" description="the postal code of the location" on-fail="filter"/>
            <string name="city" description="the city name of the location" on-fail="filter"/>
            <string name="country" description="the country name of the location" on-fail="filter"/>
        </object>
        <url name="website" description="an url leading to the website of the location" />
        <integer name="entrance_door_width" description="the width of the door in centimeters"/>
        <object name="steps">
            <integer 
                name="amount_of_steps" 
                description="the amount of steps at the entrance" />
            <integer 
                name="total_height_of_the_steps" 
                description="the total height of the steps in centimeters" 
                if="amount_of_steps!=0 and amount_of_steps!='None' and amount_of_steps!=None"/>
            <bool 
                name="access_ramp" 
                description="Is there access to a ramp to go over the steps at the entrance." 
                if="amount_of_steps!=0 and amount_of_steps!='None' and amount_of_steps!=None"/>
        </object>
        <bool 
            name="turning_point" 
            description="..."/> 
        <object name="toilet">
            <bool 
                name="toilet_present" 
                description="Is there a toilet present at the location"/>
            <string 
                name="situation_of_toilet"
                description="Is the toilet accesible for wheelschair users or is it a standard toilet"
                if="toilet_present==True"
                format="valid-choices: {['Accesible', 'Standard']}"
                on-fail="filter"/>
            <choice 
                name="location_of_the_toilet"
                if="toilet_present==True"
                description="How the toilet can be reached, with stairs, a lift or is it on the ground floor."
                format="valid-choices: {['lift', 'ground_floor','stairs']}"
                on-fail="filter">
                <case name="lift">
                    <object name="lift_info">
                        <integer 
                            name="lift_door_width"
                            description = "The width of the door of the elevator in centimeters"/>
                        <integer 
                            name="lift_width" 
                            description="The width of the elevator on the inside" />
                        <integer 
                            name="lift_depth" 
                            description="The depth of the elevator on the inside" />
                    </object>
                </case>
                <case name="ground_floor">
                    <object name="ground_floor_info"></object>
                </case>
                <case name="stairs">
                    <object name="stairs_info"></object>
                </case>
            </choice>
            <integer 
                name="width_narrowest_point_from_entrance_to_toilet"
                if="toilet_present==True"
                description="the width of the narrowest point from the entrance to the toilet in centimeters"
                />
            <integer 
                name="toilet_door_width"
                if="toilet_present==True"
                description="the width of the door of the toilet in centimeters"
                />
            <integer 
                name="number_of_handrails"
                if="toilet_present==True"
                description="amount of handrails available in the toilet"
                />
            <integer 
                name="free_space_infront_toilet"
                if="toilet_present==True"
                description="amount of space in centimeters in front of the toilet"
                />
            <integer 
                name="free_space_next_toilet"
                if="toilet_present==True"
                description="amount of space in centimeters next to the toilet"
                />
            <bool 
                name="pay_toilet"
                if="toilet_present==True"
                description="Do you have to pay to use the toilet?"
                on-fail="filter"/>
            <bool 
                name="baby_changing_table"
                if="toilet_present==True"
                description="if there is a baby changing table present in the toilet"/>
            <bool 
                name="adult_changing_table"
                if="toilet_present==True"
                description="if there is a adult changing table present in the toilet"/>
        </object>
        
    </object>
</output>  

<instructions>
You are a helpful assistant only capable of communicating with one valid JSON, and no other text.
@json_suffix_prompt_v2
</instructions>

<prompt>

Given the following information about a location, please construct a JSON that follows the correct schema.
If the answer doesn't exist in the user input, enter Null. This applies to integers, booleans and strings.
If you want to use a boolean: use 'True' or 'False' as strings, but only if the user mentioned this variable. Otherwise you enter Null.
Please extract a JSON that contains all the location's information. Be sure to go over every variable in the XML format.

The input from the user is: "{{user_input}}".

@json_suffix_prompt_v2

{output_schema}

The following variables are already given:
{{memory}}
</prompt>
</rail>