Author Box not Working

I migrated a site today to WpEngine

I was using a custom author box with the PHP and CSS mentioned below. It was working fine before the migration. but now it is all blank. I can see the CSS styes and also “By” written in the custom author box, but no other information shows.

I should mention here that I am by no mean have any idea about how the code works. I just copied it from support forum and articles online.

I had made a hook using this PHP

I used the following CSS and put it “Additional CSS” section in the theme customizer:

.author-box{
background: #ffffff;
padding: 40px;
overflow:hidden;
}
.author-box-avatar{
float: left;
margin: 0 20px 0 0;
}
.author-box-avatar img{
border-radius:100%;
border:5px solid #f1f1f1;
}
.author-box-description h5{
font-size: 24px;
margin-bottom: 10px;
font-weight: bold;
text-transform: capitalize;
}

If you visit the linked page, you could see the box at the bottom. The only word written is “By”.

Also if it helps:
– in the Elements in the “Execute PHP” label it reads “Unable to execute PHP as DISALLOW_FILE_EDIT is defined.”
– I had a chat with the support of the new host. He said they can’t help with scripting but he said something about providing them cookie/argument to be exempt if that helps, but he wasn’t too sure about what this is either.