This is a known bug with the Android client (specifically when playing synced music offline). No word from devs on a fix yet. Additionally, a sanity check on the server side is being implemented, to make sure clients can’t send play dates years into the future.
Sometimes playing that track again will remove the erroneous plays. If not, you will have to use a sqlite editor to remove those tables from metadata_item_views, save the sqlite db, then put it back into the server directory (obviously stop the PMS docker first).
