Some Captions Not Displaying/Help with code

Hello. I would like to apologize for the length of this post straightaway but know I am trying to be as thorough as possible. I am at my wits end and I hope someone can help me resolve this problem. I have the Duotive Three theme. I just upgraded and lost many of the customizations. I have repeatedly asked Duotive Support to explain to me how they resolved this issue before and have not been successful in this endeavor. I don’t want to have to ask someone every time I have to make an update. I would prefer to just learn how to remedy the problem.

I cannot get the captions to display in some places. You can see that I finally figured out how to display them on these pages in modal view:

https://schechterarchitect.com/00s-present/
https://schechterarchitect.com/80s-90s/
https://schechterarchitect.com/60s-70s/

This was accomplished by modifying the JavaScript on the page template.

However, the captions are not showing on ANY of these (portfolio detail) posts:

https://schechterarchitect.com/60s-70s/alza-corporation/
https://schechterarchitect.com/80s-90s/bio-shelter/
https://schechterarchitect.com/80s-90s/fineman-residence/
https://schechterarchitect.com/80s-90s/mann-residence/
https://schechterarchitect.com/00s-present/maddigan-morris/
https://schechterarchitect.com/00s-present/madsen-residence/
https://schechterarchitect.com/00s-present/lussier/
https://schechterarchitect.com/00s-present/architects-residence/
https://schechterarchitect.com/00s-present/hewitt-residence/
https://schechterarchitect.com/00s-present/remodels-2/
https://schechterarchitect.com/00s-present/zero-energy/

I have tried going into the corresponding pages (as these are technically posts attached to pages) to modify the code therein, but I do not see a place where I can make any modifications. Admittedly, I am somewhat new to coding. Nonetheless, I have scoured through pages and pages including the custom jquery and prettyPhoto files, et cetera, and cannot figure out what to do to get these captions to show up.

Additionally, if someone could tell me how to change the background color of the sliders, I would very much appreciate it.

I thank you very, very kindly for any assistance!