wikidatawiki.wb_items_per_site_old is the old, renamed table after it was restored for T249565's incident and it is no longer needed.
It should be dropped.
It exists on all the host:
labsdb1012.eqiad.wmnet:3306 wb_items_per_site_old labsdb1011.eqiad.wmnet:3306 wb_items_per_site_old labsdb1010.eqiad.wmnet:3306 wb_items_per_site_old labsdb1009.eqiad.wmnet:3306 wb_items_per_site_old dbstore1005.eqiad.wmnet:3318 wb_items_per_site_old db2100.codfw.wmnet:3318 wb_items_per_site_old db2094.codfw.wmnet:3318 wb_items_per_site_old db2086.codfw.wmnet:3318 wb_items_per_site_old db2085.codfw.wmnet:3318 wb_items_per_site_old db2083.codfw.wmnet:3306 wb_items_per_site_old db2082.codfw.wmnet:3306 wb_items_per_site_old db2081.codfw.wmnet:3306 wb_items_per_site_old db2080.codfw.wmnet:3306 wb_items_per_site_old db2079.codfw.wmnet:3306 wb_items_per_site_old db1126.eqiad.wmnet:3306 wb_items_per_site_old db1124.eqiad.wmnet:3318 wb_items_per_site_old db1116.eqiad.wmnet:3318 wb_items_per_site_old db1114.eqiad.wmnet:3306 wb_items_per_site_old db1111.eqiad.wmnet:3306 wb_items_per_site_old db1109.eqiad.wmnet:3306 wb_items_per_site_old db1104.eqiad.wmnet:3306 wb_items_per_site_old db1101.eqiad.wmnet:3318 wb_items_per_site_old db1099.eqiad.wmnet:3318 wb_items_per_site_old db1092.eqiad.wmnet:3306 wb_items_per_site_old db1087.eqiad.wmnet:3306 wb_items_per_site_old