ERRORS when saving in code view

[addamroy 36]

each time I try to switch back from code view to node view, I get an error that says there's an error in my code and to fix it before switching to node view.

 

There are in fact no errors in the code.

 

Here's what it's saying for errors (there are 3 of them, sometimes 4 for some reason):

 

Recognition on line 307 char 24

This is what's on line 307

define Estimate Weights {

 

Recognition on line 395 char 9

This is what's on line 395

    then {

 

Recognition on line 397 char 17

This is what's on line 397

            then {

 

 

Any idea what's going on here it's driving me nuts?