The price cell contains characters Shopify cannot read as a number. Currency symbols, thousands separators and locale decimal commas all cause this.
Export prices as plain numbers from your source system, not as formatted strings.
The free Shopify CSV checker names the exact line for each of these problems. The paid Rescue Kit adds 20 more error cases, a template in Shopify's column order, and the checker as a script you can run in a pipeline.
See the Rescue Kit →