Remove spurious error message

[gentlementlegen]

          > ```diff

! No price label is set to calculate the duration

<!--
{
  "issueNumber": 75,
  "caller": "start"
}
-->

This error doesn't make sense it should be removed.

Originally posted by @0x4007 in ubiquity/ts-template#75 (comment)

[zugdev]

Spurious is a beautiful word.

[ubiquity-os-beta]

Note

The following contributors may be suitable for this task:

gentlementlegen

78% Match ubiquity-os-marketplace/command-start-stop#60
76% Match Meniole/todel#8

[gentlementlegen]

/start

[ubiquity-os-beta]

Warning!	This task was created over 87 days ago. Please confirm that this issue specification is accurate before starting.
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[ubiquity-os-beta]

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[gentlementlegen]

/stop