after bankruptcies there is a lien on my home

When was the lien recorded?  Clearly if the lien was recorded after your bankruptrcy was filed, it is void.   If the lien was recorded prior to your bankruptcy being filed, then it remains against whatever assets it attached to on the date your bankruptcy case was filed.   If this is a judgment lien, it can be removed under certain circumstances pursuant to 11 U.S.C. 522(f).   The fact that you're asking this question leads me to believe you did not have a qualified bankruptcy attorney representing you in the case.   Now would be a good time to hire one to protect your rights. See my article on what happens with liens in bankruptcy for more information.