Reports are not available but tracking is successfull

Hello Community,

we recently changed our matomo settings to delete very old reports regularly. Since then all data is deleted and reports aren’t available anymore. Nevertheless the admin settings show that tracking and even archiving is still working. But one error is displayed:
Error DB tables exist: No (Some tables may be missing: wp_matomo_archive_invalidat).
Does anyone know how to resolve our problem?

Kind regards.