In my case they have deleted the entries in my logbook and my successes. No documented flight in the logbook before 02/19/2021! But those in the pilot profile have been retained, nothing fits together anymore:
3 hours of flight time and a whole distance of 57 thousand km. No, I´m not pilot in the ESS 
My profile is corrupted…
As a developer, I would say the database is inconsistent and an attempt must be made to fix it from a backup.
BUT: do they have a backup ???