Hi pen H7 not recognised - Chuwi Hi10 X

My Hipen H7 is not regognised by my Chuwi Hi10 x. Last week it was working fine. Suddenly it is not recognising my Pen. i even changed the battery. Please let me know if there is any solution for this.
My Chuwi Hi10 X serial number is HI10 XQ128GH620609947