The Error Log file was found with 11.8 GB.
The first log of that date is “01-Oct-2019 15:18:45 UTC”
More than 2.5 years ago.
It was then truncated to 100 MB.
Most logged entries are Warnings, from Custom Mix Function plugin.
Unless the issue is resolved, or the error log will continue to grow.
Truncate the Error Log file from 11.8 GB to 100 MB
After truncating the error log file, the disk usage dropped from 19.35 GB to around 7.7 GB.
Post Resume access error