Hello,

I have removed the empty space elements they are not needed. You have set the row to be full height.

Next, I have set the columns and content to be located in the middle. However, it does not work as it should.

Please deactivate all the plugins not related to the theme, switch the parent theme, and check the issue, If the problem has gone, activate the plugins one by one, checking the issue to detect which one causes the problem.

If the problem remains, confirm the permit for us to deactivate the plugins not related to the theme and switch to the parent theme for the while of checking what may take up to 15 minutes. Please make the full backup of your site.

Best Regards