Need to delete this file to be able to backup data on TWRP Been trying to find this file for hours but don't know where it is. Any advice?

I:Error adding file '/data/anr/3i6xjEcwwZbkn6mZ,+ccwD' to '/data/media/0/TWRP/BACKUPS/c51c11bd/2020-05-05--09-33-29/data.ext4.win000'
Error creating backup.
I:ERROR tarList for thread ID 0
Error creating backup.
I:InfoManager saving '/data/media/0/TWRP/BACKUPS/c51c11bd/2020-05-05--09-33-29/data.info'
createTarFork() process ended with ERROR: 255
Backup Failed. Cleaning Backup Folder.
I:Copying file /tmp/recovery.log to /data/media/0/TWRP/BACKUPS/c51c11bd/2020-05-05--09-33-29/recovery.log
just mount /data and type rm followed by the file name in single quotes. TWRP has a build-in Terminal, but i recommend to do it from adb shell  

adb shell rm '/data/anr/3i6xjEcwwZbkn6mZ,+ccwD'