Error #1000 on a contact

Hi,

I get an error when running my model:

************************************************************************

 A fatal error has been detected during input processing:

  *** See next message about line 32654 from file:
      Z:/Bureau/Lisa/4) Altair - Modèle Pied Plat/Flatfoot_model_shell_trias_automesh_QI Optimized_v7
   'CONTACT       43     0.6      84      85    NORM0.0'

  *** ERROR # 1000 *** in the input data:
  Incorrect data in field # 7.

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Obvioulsy it affects the contact whose ID is 43. It is a contact between 3D hexa elements et 2D trias elements.

Does anyone know what could be the problem on the contact ?

Thanks in advance for any help or idea to solve the issue,

Lisa.