The Main Taskbar does not appear any more on second of my two monitors

This is my main issue.I have Windows 10 on my PC. I have two monitors.

I used to have taskbars on each of the two monitors, and the taskbars showed icons and names of websites open on the respective monitors.

A couple of days ago, for whatever reason, a taskbar has started appearing only on one monitor — the “main” monitor — and that taskbar shows names of websites open on both monitors.

Settings > Taskbars did not provide me a clue on how to restore the taskbar on the second — “secondary” monitor.”
Regards.

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