GROUP: C22 NOT FOUND BEFORE END OF FILE

I am trying to run mi first lake model. I did the tutorial on the simple lake model which is similar to my case.
However, after checking several times, its keep sending the message:
GROUP: C22 NOT FOUND BEFORE END OF FILE
Any idea on what the problem could be?

Thanks

This issue sometimes occurs when a model has not been saved with the latest version before running. If that doesn’t fix it, please upload the model here or send it to us at support@eemodelingsystem.com and we will check it.