Collection banner and text can not be seen on every collection page

[ohmydocs]

I want to show text and banner on this collection page: https://www.ohmydocs.shop/collections/all

I can't figure out how, the banner and text are uploaded already. In other collections the banner/text can be seen. Like here: 

https://www.ohmydocs.shop/collections/zwarte-dr-martens

https://www.ohmydocs.shop/collections/vintage-drmartens-laarzen-schoenen-sandalen-slippers

Can someone help me with this? Thanks!

[dmwwebartisan]

@ohmydocs 

This is code customization work .

Thanks!

[ohmydocs]

Okay thanks, but how come that some collection pages do have a banner and text and the other doesn't?

[dmwwebartisan]

@ohmydocs 

This following url of collection page 

https://www.ohmydocs.shop/collections/zwarte-dr-martens

https://www.ohmydocs.shop/collections/vintage-drmartens-laarzen-schoenen-sandalen-slippers

this is collection list page  https://www.ohmydocs.shop/collections/all

[ohmydocs]

Allright thanks! Whats the difference and how can I make sure the banner can be seen in a collection list as well?