Crash when using with 64 bit

[oferRounds]

After upgrading our app to 64 bit (as Google requiers it for all apps to do by August 1st) we get the following crash, which happens when the scanner is getting opened.
Any idea how to solve it?

[oferRounds]

Specifically, it started to happen after I removed from from /app/build.gradle the following lines:

ndk {	
            abiFilters "armeabi-v7a", "x86"	
        }

[oferRounds]

@aseemnishad any idea?