A bit odd
Using Jamroom
only thing I can see that could trigger that warning "...jrCore_create_page_element...." in the audio module is this function:
jrAudio_form_field_audio_display()
Which is fired when an audio form field has been added via the Form Designer. Have you added any audio type Form Designer fields to anywhere?
if yes, my guess is its related to the settings in that form.