Error occurred when running Tutorial 1

[JerryHOTS]

First of all, thank you for developing and maintaining pyEPR.

I’d like to report an issue that I encountered while testing the tutorial notebooks on my own. I'm using Ansys 2021 R2. In Tutorial 1, when running the step eprh.hfss_report_full_convergence();, it succeeded for variation 0 and 1, but failed for variation 2 (which I believe has
Lj_1 = 8nH), with error message "ValueError: Data has no positive values, and therefore cannot be log-scaled."

[github-actions]

👏👏👏 You are awesome! Thank you for making your first issue to pyEPR ' first issue