Date and time separator problem

Hi Lester ‘GaMerZ’ Chan, first of all I wanted to congratulate you on your plugin which is great. I love some features and stats from the old php forums.

https://i.postimg.cc/7ZPyYzw9/119-Image1.png

Now I have a little problem because I see a separator between date and time that I don’t like.
As you can see from the image that I am attaching, an “@” appears.
I can’t understand if this depends on your plugin, my theme or wordpress.

I searched around the web but found a relationship with only one other plugin that I didn’t install.

The page I need help with: [log in to see the link]