MetroSet_UI.Controls.MetroSetTabControl has thrown an unhandled exception in the designer

[Paderman]

Localization in other languages not possible, error message for tab 🤔

I want to translate in many languages, but it's not possible because with this issue...

The control MetroSet_UI.Controls.MetroSetTabControl has thrown an unhandled exception in the designer and has been disabled.

Exception:
Value cannot be null.
Parameter name: font

Stack trace:
 at
MetroSet_UI.Controls.MetroSetTabControl.OnPaint(PaintEvent Args e)

I set the fonts for tabs but I get error message...