Adjustment of Status - I-485

hi folks!! i applied aos for my wife march 2018 and already file i 130 in march 2017!! she got her combo card in aug 2018!! she travel back and forth between seattle and vancouver and we dont have issue when passing border by land but it takes longer than others.last month i got update in her account that interview is canceled. we dont get any letter about interview or update suddenly we just see inter view canceled.its wierd. i called uscis and they said its error in some online account and u have to wait for interview scheuled.this happened 22 oct 2018. just today 12 dec 2018 i got email from national visa center about case number and some information about our case.and its said about pay the fee for counclar process. my wife has iranian passport and for travel ban they dont issue any visa for her she cant go through councelar process from canada. she has aos inside usa and there is no other way for her. what shoudl we do now? thanks