It is going to depend upon the dates covered by the reinstated driving licence, if it covers the period when you were driving you are not guilty of “ Driving otherwise than in accordance with a driving licence”.
If guilty it is an offence of strict liability, a guilty mind (mens rea) does not have to be shown, and the prosecution has only to prove that the offence was committed. I think the Magistrates or prosecution may have some pressing questions for you.