Error installing hello world app

[jpph]

I got this error message when I try to install the hello world app:

Installing 'sparkles-hello-world' from: https://github.com/getumbrel/umbrel-community-app-store
Setting up data dir for app sparkles-hello-world...
sending incremental file list
sent 108 bytes  received 12 bytes  240.00 bytes/sec
total size is 1,093  speedup is 9.11
Pulling images for app sparkles-hello-world...
Pulling server     ... done
Pulling app_proxy  ... done
Pulling tor_server ... done
Starting app sparkles-hello-world...
Generating hidden services for sparkles-hello-world...
Starting sparkles-hello-world_app_proxy_1 ... error

ERROR: for sparkles-hello-world_app_proxy_1  Cannot start service app_proxy: network c2fb8bff638004f3b4ac7ed3a6738c5c61b2b75884005d268d5c00e94ed5fe53 not found                                                             
ERROR: for app_proxy  Cannot start service app_proxy: network c2fb8bff638004f3b4ac7ed3a6738c5c61b2b75884005d268d5c00e94ed5fe53 not found                                                                                    ERROR: Encountered errors while bringing up the project.`