task error with grade_items_history

[mnods]

very handy plugin - thanks.

in case you're still maintaining, i'm getting an error for the task \core\task\legacy_plugin_cron_task:

Processing cron function for local_archiveup... ... started 02:06:02. Current memory use 25.9MB. ArchiveUp: Running archive tasks (current time: Mon, 04 Jan 2021 02:06:02 +0800... Looking for old record(s) in legacy log table... ... archived 0 old record(s) from legacy log table. Looking for old record(s) in standard logstore... ... archived 40472 old record(s) from standard logstore. Looking for old grade history records in 'grade_outcomes_history'... ... nothing to archive. Looking for old grade history records in 'grade_categories_history'... ... moved 3 old grade history record(s) in 'grade_categories_history' to 'grade_categories_history_au'. Looking for old grade history records in 'grade_items_history'... ... used 30 dbqueries ... used 8.7198669910431 seconds Scheduled task failed: Legacy cron processing for plugins (core\task\legacy_plugin_cron_task),Error writing to database

when i have the grade tables included. Something not quite right with the items_history one.

using latest version of archiveup with mdl3.9.3+ (Build: 20201204)