changes in frontend without action

Hi,

with your Team Help we nearly had everything we wanted on our site.
Last week we copied the whole testpage to bring it to the final server with doing final changes.
On Saturday I addeed english to the string translation to get the right text to the footer on the english page.

After that some strange changes occured, a lot of styling from the demo import came back.
– the text color is not right
– we deleted the flags in the top header
– we added 7 social Icons in the footer
– the TR Menue somehow rearranged with a lot of dublications
…….

The strange thing is the css codes are still in the customizer area in general settings
And the colors in the backend are more black anf in the footer more white, but the page shows something else.