Can't pull data by briefcase-Error message

Can't pull for two forms.
error: problem with javarosa parsing form: org.opendatakit.aggregate.exception.odkincompletesubmissiondata: javarosa failed to construct a formdef. is this an xform definition?

Tools versions
ODK aggregate version - 1.7.1. ODK collect v1.18.2. ODK Briefcase version 1.13.1 (also tried 1.9.0).

Maybe update the Briefcase.

I noticed ODK changed expression for double repeats from 6/7th January. After that newly converted file only can be uploaded to 1.7.1 aggregate. But briefcase was released at December.

Welcome to the ODK forum, @anindya! We're glad you're here. When you get a chance, please introduce yourself here. I'd also encourage you to add a real picture as your avatar because it helps build community!

Could you share the forms you're trying to pull here so that I can do some verifications?