My sandbox account are all disappeared

[goyote]

Good afternoon,

My sandbox account are all disappeared and the dashboard shows below message

If you wish to report this error please include the following error id: a9bdc5a07c554

[MTS_Stefan]

Hello Goyote,

We are sorry about this issue, it is unfortunately a known bug right now that has not been resolved.
Please have a bit more patience until it is resolved.
For the time being you can create new accounts, to avoid any road blocks.

Regards,
Stefan