I got the Travel Trips Theme from the below link:
themepix.com/traveltrips-wordpress-theme/
By the way, I just found a new theme similar Travel Trips:
fthemes.com/holiday-free-wordpress-theme/
Thanks,
Alex
It is because I forget where did I get it.
So I am studying the codes file by file to figure out.
It is working well if I change the Twenty Fifteen theme folder to be Travel Trips. I am very sure the white dead is causing by their recommended free theme.
The recommended Travel Trips theme is pretty good and the best fittest my topics. I am quite sure the white dead is just cause by the confusing coding in line 208 of functions.php.
Anyone can help?? Please.
