Initial letter not in capital

My journal webpage suddenly changed its style. Initially, the first letter of each word was capitalized, but now all words appear in lowercase. Any ideas on how to fix this?

Hi @Tommy_Tan,

Strange… Have you recently made any modifications to your site’s theme or back-end code?
Also, can you please indicate which version of OJS you’re using (e.g. 3.3.0-8)? Please include this in your posts, as it is relevant for others to be able to assist you here on the forum.

-Roger
PKP Team