Chosen Solution

Recently my keyboard became divided into two parts with a space between the parts.

Just use your thumb and forefinger to pinch the two pieces together again. The split keyboard is a feature of the iPad to make it easier to type while holding it.

there should also be a toggle in settings>general>keyboard :)

Thanks ! Too hard using two sides of my brain at once .

The toggle version couldn’t work cause my settings, general, does not the third option keyyboard.