Monit Syntax error with Polling Time Integer value

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Describe the bug
Poll Time integer within Service Settings creates a configuration syntax error

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Services > Monit > Settings > Service Settings'
2. Click on 'Edit' for a rule
3. Click on 'Advanced mode'
4. Scroll down to 'Poll Time'
5. Enter an integer

Expected behavior
Config to save without syntax errors

Result
# monit -t -v
Adding 'allow localhost' -- host resolved to [::1]
Adding 'allow localhost' -- host resolved to [::ffff:127.0.0.1]
/usr/local/etc/monitrc:35: invalid every format '"'
/usr/local/etc/monitrc:58: syntax error '"

...

check host xxx address xxx
if failed port 443 protocol https and certificate valid > 20 days then alert
every "'
monit exiting due to parsing errors in the configuration file.

Start at Services > Monit > Settings > Service Settings, reproduce the issue in Advanced mode by entering an integer in Poll Time, and inspect the generated monitrc output. Run monit -t -v against the resulting configuration; done means the integer is emitted as valid Monit syntax and the configuration saves without parsing errors.