Error syncing products to Uniware

[raunhar]

While syncing the products to Uniware (platform for managingorders & inventory across multiple B2C & B2B channels), some products are not getting synced.

The error that shows up is:

Unable to evaluate expression:#{#productElement.get('id')} '

 

Please check the request>>>URL=lilpicks.com//api/stock_availables/821, METHOD=GET, HEADERS=null, PARAMS=null, PROXY-HOST=null, PROXY-PORT=null]

11:14:30,000 WARN

 

Please check the result>>>[RESULT=<!--?xml version="1.0" encoding="UTF-8"?-->

<prestashop 

 

Please suggest the solution to the error.