Removing Wikitech's override of $wgMWOAuthCentralWiki has orphaned the local consumers in the labswiki.oauth_registered_consumer table. Bots that were using these consumers need to have new grants created in the central metawiki consumer repository to start working again.
wikiadmin2023@10.192.21.14(labswiki)> select user_name, oarc_name, oarc_owner_only from oauth_registered_consumer join user on oarc_user_id=user_id where oarc_stage = 1; +------------------------------+----------------------------------------+-----------------+ | user_name | oarc_name | oarc_owner_only | +------------------------------+----------------------------------------+-----------------+ | Stashbot | stashbot | 1 | | Strainu | ROSEdu challenge | 0 | | StrikerBot | Striker | 1 | | MarcoAurelio | marcoaurelio-adminbot | 1 | | BryanDavis | BryanDavis | 1 | | Labslogbot | wmfkeystonehooks | 1 | | MABot | MABot | 1 | | DeploymentCalendarTool | DeploymentCalendarTool | 1 | | DeploymentCalendarTool | DeploymentCalendar | 1 | | MABot | MABot | 1 | | Toolforge Image Bot | tf-image-bot | 1 | | Toolforge Image Bot | tf-image-bot-self | 1 | | Samtar | make-deployments-calendar (Samtar) | 1 | | Phabbanbot | Phabbanbot | 1 | | Wikitech double redirect bot | Wikitech double redirect bot Pywikibot | 1 | | Gitlabaccountapprovalbot | Gitlabaccountapprovalbot | 1 | | David Caro | dcaro-pywikibot | 1 | | ScheduleDeploymentBot | ScheduleDeploymentBot | 1 | | Gergő Tisza | schedule-deployment personal test | 1 | | Gergő Tisza | schedule-deployment personal test | 1 | +------------------------------+----------------------------------------+-----------------+ 20 rows in set (0.001 sec)