Errors on configuration and Twilio Error log messages

Just installed your plugin on Indigo 7.4, using MacOS Mojave.

The configuration failed to register, log entries indicated:

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Traceback (most recent call last):
File "plugin.py", line 155, in validatePrefsConfigUi
KeyError: key updateFrequency not found in dict
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Other errors within the log file show:

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Traceback (most recent call last):
File "plugin.py", line 74, in runConcurrentThread
AttributeError: 'Plugin' object has no attribute 'twilioClient'

Twilio Error plugin runConcurrentThread function returned or failed (will attempt again in 10 seconds)
Twilio Error Error in plugin execution runConcurrentThread:
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I'm kinda guessing here that Mojave isn't supported.

Mojave should work fine.

Please turn on debug logging and restart the plugin, then post the log from the restart.

Try release 7.2.1, which is now current on the plugin store.

7.2.1 did the trick. No more errors and it allowed me to complete the configuration.

Really looking forward to using this plugin... this should really extend Indigo in some excellent ways.