TechToolPro10 another crash

Again problems for a second time already. All this within an hour of buying and installing the new programme.
Running the 'check computer' suite of tests and crashed when finishing the sensor test (previous tests, memory, fans etc. ran ok). Don't think I am goin to be able to trust this new version 10 of the programme, version 9 was more stable and reliable.
iMac El Capitan 10.11.6