coding is appearing in site ….

Hello,
I just made a blog with WP [first time, fresh install]. I am not very familiar with it, but i know that the coding should not be showing on the actual pages as it is. Could someone please, please, please take a look and give me some advice on this? it can be found @ https://www.alexserpa.com/blog/
…notice the “line 113” error at the top of page.