Imacro - Error -921 with a field-wrapper

I m recording an imacro macro.

Here is my script:

VERSION BUILD=8920312 RECORDER=FX
TAB T=1
TAG POS=1 TYPE=EM ATTR=TXT:Lui<SP>écrire
TAG POS=1 TYPE=INPUT:TEXT FORM=ID:postform ATTR=ID:subj CONTENT=Hello
TAG POS=1 TYPE=TEXTAREA FORM=ID:postform ATTR=ID:text CONTENT=Bonjour
TAG POS=1 TYPE=INPUT:CHECKBOX FORM=ID:postform ATTR=ID:inclure CONTENT=YES
TAG POS=1 TYPE=INPUT:SUBMIT FORM=ID:postform ATTR=*

Here is the code in the body of the page:

<div id="form-subj" class="rc-form-field ">
<label for="subj">Sujet :</label>
<span class="field-wrapper">
<input id="subj" type="text" value="" name="subj" maxlength="40">
</span>
</div>

I attached a capture too of the page.

I suppose that the field-wrapper is causing the error.