Conditional Formatting & Formulae failing to respond in Calc document

I made the attached document to experiment with logging time, however two issues have cropped up that I can’t work out how to solve:

  1. The Conditional Formatting to make today’s date “highlighted in pink” has stopped responding, and I can’t work out why- I haven’t touched it since it was working.

  2. The formulae to convert and display the digits in the red/orange/yellow “H/M/S” columns (for example in columns E and F) has stopped responding, again I have not touched it since it was working so I am unsure why this is happening also.

Any help with this would be excellent:

C:\fakepath\Time Log (life categories, libreoffice example) [26:08:19]).ods

You have disabled automatic calculation in your spreadsheet: Data->Calculate->AutoCalculate.

That’s it! Don’t know how I managed to do that but thank you!