problem with in the CSS catch responsive pro

Hi I have some SEO problem with my blog with catch responsive pro theme. I tested my site, and discover that there are 5 <title> tags on each page (balises in French ). And that's a real problem because for SEO there must only have one by page or post I found using access to source code in my browser that there are 4 times a <title> check </check> in addition to my real title ans it 's on every pages and posts and is bad for my SEO/ I spend hours to try to find in which file of the CSS I have to modify to delete that but I can't find it . Could you please indicate me where can I modify ( the name of the file to edit) please. I don't know if I did something wrong or if it's a mistake in the code. you can check it , Can you help me