404 Error for Some Image Size

Prior to Newpaper we have different theme and we used force regenerate thumbnails plugin to generate new thumbnails for newspaper theme.

Now, force regenerate plugin deleted all previous thumbnails except what newspaper required. We are now getting error for three thumbnails ending with -310×165.jpg & -70×70.jpg & 600×330.jpg

Is there any way to define them in some function file so that force regenerate thumbnails plugin will not delete them.

We are using newspaper 8.

Thank you for the quick response, please note that i dont want to use different thumbnails…i only want that when we generate thumbnails then force regenerate plugin dont those size and if someone gave reference to that image then 404 error wont come to us..
td_api_thumb::add(‘td_324x160’,
array(
‘name’ => ‘td_324x160’,
‘width’ => 324,
‘height’ => 160,
‘crop’ => array(‘center’, ‘top’),
‘post_format_icon_size’ => ‘normal’,
‘used_on’ => array(
‘Module 1, 2’, ‘Block 2, 3, 4’, ‘Big grid 2’
),
‘no_image_path’ => td_global::$get_template_directory_uri,
)
);

Can i use the code below from above modified code so that force regenerate plugin only generate those specific size and wont use them in theme or any where else…

td_api_thumb::add(‘td_310x165’,
array(
‘name’ => ‘td_310x165’,
‘width’ => 310,
‘height’ => 165,
‘crop’ => array(‘center’, ‘top’),
‘post_format_icon_size’ => ‘normal’,
)
);

Or these arrays defined somewhere else also..??