In the module rest-services, in the configuration of the endpoint commands - one can configure roles per command which are required to trigger a command via that endpoint.

The configurations ...

• /modules/rest-services/rest-endpoints/commands/enabledCommands/activate/access/roles
• /modules/rest-services/rest-endpoints/commands/enabledCommands/markAsDeleted/access/roles

... specify the role rest which is not existing anymore (was renamed to rest-editor).
The command should be updated to allow the new role rest-editor.

(See screenshot too.)