icons toolbar in photoshop disappear after upgrading

I have installed Nik Collection trial version from two days and it was perfectly installed. and I upgraded to photoshop 10 October 2020 and I have noticed that the plugins is not compatible with the new version of photoshop.
so I stepped back and downgrading my photoshop so I can use the Nik collection plugins. I have noticed that the plugins work perfectly under Filters>Nik collection but the floating icons toolbar is disappeared.
is there any way to restor that floating tools again?

Another report of this: