Getting Warning in Service Schema of priceRange

when i am activating plugin and using it on my site. i am getting an error “The priceRange field is recommended. Please provide a value if available.”

while testing my page on structured data testing tool.
URL: https://abhaypackers.com/packers-and-movers-in-mira-road/

And i can not see any option of adding price in post type “service”

please help me asap.

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