/title command not working properly.

/title command doesn't work properly.

 

All my title commands were working properly until I changed the time values (/title @a times 20 100 20).

But unfortunetly, all my /title commands stopped working, and I am unable tu use any /title command again on my world.

I rebooted my game, my computer, and tried making it like this, but still not managed to make it work...

Step1: write this in the command block: /title @a times 20 400 20

Step2: write this in the second command block: /title @p title {"text":"title"}**

Step2: write this in the third command block: /title @p subtitle {"text":"subtitle"}**

Step 4: place a redstone block surrounded by the 3 command block

 

Thank you.                                                                                                                -MagicCurly