param not found

Array
(
    [type] => uc_special
    [title] => Item Image Size
    [name] => item_image_size
    [description] => 
    [enable_condition] => 
    [condition_attribute] => 
    [condition_operator] => equal
    [condition_value] => Array
        (
        )

    [condition_attribute2] => 
    [condition_operator2] => equal
    [condition_value2] => 
    [label_block] => 
    [tabname] => 
    [attribute_type] => items_image_size
    [entrance_animation_item_class] => 
    [schema_title_name] => 
    [schema_content_name] => 
    [image_size_param_name] => 
    [dynamic_popup_suffix] => 
)