BI Publisher RTF Template Error - conditions

Hi All,

I'm working on an offer letter template where I need to use the below if then statement.

It is working as expected by itself.

However, I need to use it to replace the highlighted plain text with the above if else statement - which is inside a simple condition I inserted below.
(Also it is a part of a table full of simple conditions)

When I place this if else statement to the highlighted place and try to preview, I get the following error:

I'd really appreciate If anyone could advise how it can be fixed. I'm wondering if the issue is mixing simple conditions with an extended function(xdofx). If so, can the syntax of the simple conditions be updated somehow?