As the error states, right click on the error message to "Show Problematic Geometry" or maybe "Go to Object." It also states it occured on body "SolarCell Body" and on node 6213. You can show node 6213 by making a named selection set to worksheet method and add a row to the worksheet as shown:
Only use node ID 6213 instead of 15 I used. Press Generate.
Also, magnitude exceeded errors in thermal analysis are most often due to contacts not working, so that heat cannot transfer from heat input locations to heat output locations. Under the connections branch insert a "Contact Tool." Right click to "Generate Initial Contact Results" and view the "Inital information." Also, subjectively review each contact and ensure contact and target selections are correct. Simply relying on the auto-generated contacts, without reviewing correctness, is a mistake. Often in models with thin bodies the tolerance the auto-contact generator used was larger than the smallest thin body distance.
You can change the silder value or set to "value" and set an absolute distance smaller than the thickness of the thinnest body.
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