OJS 3.1.2.0 theme setting error

I using ojs 3.1.2.0
And…I applied the bootstrap3(3.1.2-4) theme and the immersion 1.0.2 theme to ojs
But I don’t know if this is a good application
image1 image2

Hi @woosik.K,

From this screenshot, I see that you have applied Immersion theme but it uses footer and header templates from a default one for some reason. Can you make sure that the template cache is refreshed after switching to this theme? E.g., by looking at the content of the cache folder? I would delete it manually just in case if for some reason it cannot be deleted from a dashboard.

Also, I would check PHP error log for details.