Open the file, then press shift-z to render using pro render. Then change the max displacement value to for example "20". dies every time for me.
This is repeatable. But, the plugins crashes semi-randomly in regular usage as well and is harder to report. 1.7 is very unstable for me on MBP15 (2017) with pro 560 as well as with attached vega 64 in razer Core X.(single and dual) mac os 10.13.6 official, blender 2.79b