Web ui does not load with postgres world

[zRelux]

It returns this error in this url: http://localhost:3456?resource=run&backend=postgres&env=production

.env

WORKFLOW_TARGET_WORLD="@workflow/world-postgres"
WORKFLOW_POSTGRES_URL="..." # I have a correct as I can see workflow runs complete sucessfully
WORKFLOW_POSTGRES_JOB_PREFIX="workflow_"
WORKFLOW_POSTGRES_WORKER_CONCURRENCY=10
PORT=4000

command

bunx workflow web --backend postgres

[PaulLocksley]

Does this work for you instead?
http://localhost:3456?resource=run&backend=@workflow/world-postgres&env=production

it defaults to a slightly different backend for me.