Here's what I'm gettting (latest macOS with Docker Desktop)
% docker run --rm -p 2480:2480 -p 2424:2424 --env arcadedb.server.rootPassword=playwithdata --env "arcadedb.server.defaultDatabases=Movies[root]{import:github.com/ArcadeData/arcadedb-datasets/raw/main/… arcadedata/arcadedb:latest
Unable to find image 'arcadedata/arcadedb:latest' locally
latest: Pulling from arcadedata/arcadedb
a0d0a0d46f8b: Pull complete
d2d0c91be6de: Pull complete
95d38cb0a456: Pull complete
2c8d9d46a1a2: Pull complete
ba01a0ca48fb: Pull complete
8be7bc8431db: Pull complete
af17a58977cc: Pull complete
Digest: sha256:9829bff6689eadf46aee4802d9aec60a440e4c1d41098602dfdd5e237ea6d58f
Status: Downloaded newer image for arcadedata/arcadedb:latest
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██╔══██║██╔══██╗██║ ██╔══██║██║ ██║██╔══╝ ██║ ██║██╔══██╗
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╚═╝ ╚═╝╚═╝ ╚═╝ ╚═════╝╚═╝ ╚═╝╚═════╝ ╚══════╝╚═════╝ ╚═════╝
PLAY WITH DATA arcadedb.com
[1.862s][error][gc] Failed to allocate backing file (Cannot allocate memory)
[5.251s][error][gc,init] Not enough space available on the backing filesystem to hold the current max
[5.263s][error][gc,init] Java heap size (2048M). Forcefully lowering max Java heap size to 2046M (100%).
2021-10-06 03:31:46.886 INFO [ArcadeDBServer] <ArcadeDB_0> ArcadeDB Server v21.10.2-SNAPSHOT (build d12f63da03a4d069ffd2a30a9d0c3af630ccf600/1633452397083/main) is starting up...
2021-10-06 03:31:46.890 INFO [ArcadeDBServer] <ArcadeDB_0> Starting ArcadeDB Server with plugins [] ...
2021-10-06 03:31:47.564 INFO [ArcadeDBServer] <ArcadeDB_0> - JMX Metrics Started...
2021-10-06 03:31:55.490 INFO [ServerSecurity] <ArcadeDB_0> Creating root user with the provided password%
The browser (Firefox latest) says:

Any ideas?