How to Install Facebook Pixel on Blogger?(2020)(error:he reference to entity "ev" must end with the ';' delimiter.)

If  you install Facebook Pixel on Blogger  is error or not work

org.xml.sax.SAXParseException; lineNumber:
 columnNumber:
The reference to entity "ev" must end with the ';' delimiter.

1. encode  Facebook Pixel  with HTML Encoderbr

2. Paste on blogger and after </head>
3. Add amp; on after amp;