Error calling service, home assistant api error

[JonLaliberte]

Describe the bug
Receiving this error in node-red: "Error calling service, home assistant api error"

Environment (please complete the following information):

• Node Red Version: 0.18.7

• NR Home Assistant Plugin Version: 0.5.1

• Is Node Red running in Docker: yes

• HA Version: 0.73.1 (too many breaking changes since to do a quick update to a more recent build)

• Have you searched previous issues for duplicates?: Yes

Additional context
I found issue #3, but it doesn't apply here.

I've had this installed and working for some time now. I updated the plugin from v0.2.1 to 0.5.1 the other day. After this I started getting the "Error calling service, home assistant api error" errors.
The thing is, the calls seem to be working - but an error is logged each time.

For example I have a simple test flow with an inject node connected to a call service node to turn off a light. After injecting the light turns off, but I receive 2 errors in the debug log:

[zachowj]

Yes looks like something is going on. I haven't had a chance to fully look into why this is occurring but did test it on the latest build of node-red v0.19.5 and it seems to work. So if updating your Node-RED is a viable option I would recommend that until I can track this down.

[zachowj]

Looks like a breaking change was introduced into v0.5.0 without realizing it. Node-RED v0.19.+ is required now for version 0.5.0+