Please check about System Preferences > Security & Privacy > Privacy > Accessibility
Check about the option of ControlaxForMac：
a) If it’s unable, please enable it.
b) If it’s enabled, please:
i. Delete the Controlax item in the list. ii. Then connect the iPhone and Computer with Controlax again. iii.Then Click some button about system presets(e.g. ‘Screen shot’,’Volume Up’) , a windows about ‘Accessibility Access’. iv. Just allow or set it through ‘Open System Preferences’.
If it’s still doesn’t work，please check about Automation, and make sure all the options are enable.
If you have any problem, you can email us : firstname.lastname@example.org，we would reply every emails in 1 workday.