Hello @KevinTheJedi
when added the config mailbox plugin instance and saved it in the plugin _instance table so when I deleted the plugin instance created from manage->plugin->pluign_instance and go to email again for re-config I get this error
but when I made the auth_bk = 'oauth2' and auth_id = NULL manually in the email_account table and re-config it works well so how did i solve this error