Mighty Good on "[Plugin: UpdraftPlus Backup and Restoration] Backup to Dropbox not completing"

Hello,

Updraft Plus 1.12.4 (free version) is not completing backup to Dropbox account. It keeps attempting, but has not been successful. Has worked on this site prior. I have the latest log file for moderator to review.

Thanks!

https://wordpress.org/plugins/updraftplus/