If you come across an operating bug while using Trusty Timer, you can report the problem within the tool.
Step-by-Step Instructions
Click on the down arrow next to your username in the upper right corner of the screen.

Select Report Bug.
You’ll be directed to a new browser tab, recorder.jam.dev, where you’ll be asked to record your screen to capture the steps you’re taking when noticing the bug. You can choose to include your voice in the recording or only capture your screen.
Click Start Recording.
Click Share.
When done retracing your steps, return back to the recording tab and click Stop.
Click Submit recording.