Is heat of formation necessary for the Conjuagte Heat Transfer?

Hello,
I started a conjugate heat transfer simulation for the battery cooler fans of a car, I just simplfied the cells and took a result for two run of my simulation but as I tried for different inital temperature, I got 3 error caused by the heat of formation.
I did some Conjugate heat transfer simulations before but it was not required to enter any heat of formation value. Can you help me, why do I get error this time?
Thanks
Here my project and runs:

And here my errors:

Hi!

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