I noticed this morning that all of my graphs stopped graphing data on 8/16 at midnight. Running ./validate.php yields the following results:
[OK] Composer Version: 1.7.1
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database schema correct
I checked disk space and there is plenty left in the directory that is being used to store data. Also, looking through htop, the poller process is clearly running and gathering data