No C score or Estimated TM score

Hi everyone,
I recently submitted a protein sequence to I-TASSER (233 residues long), and just got the modeling results. Unfortunately, even though I got the usual five models and suggested structural analogs, I did not get any C scores or estimated TM score for my top model. Has this happened to anyone before? I use I-TASSER frequently and have never had this problem before.
Thanks

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Could you let us know the jobid?