# Error calling fillOrder function in 1Inch Limit order protocol

**URL:** https://gov.1inch.network/t/error-calling-fillorder-function-in-1inch-limit-order-protocol/401
**Category:** 3.0 Developer Portal
**Created:** [November 28, 2022, 10:49am UTC](https://gov.1inch.network/t/error-calling-fillorder-function-in-1inch-limit-order-protocol/401 "2022-11-28T10:49:53Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Anonymous50](https://avatars.discourse-cdn.com/v4/letter/a/8baadc/32.png) [@Anonymous50](https://gov.1inch.network/u/Anonymous50)
#### Post date: [November 28, 2022, 10:49am UTC](https://gov.1inch.network/t/error-calling-fillorder-function-in-1inch-limit-order-protocol/401/1 "2022-11-28T10:49:53Z")

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Hi, I’m facing an error :”Error LOP invalid signature” calling fillOrder() function trying to place a limit order.  
Did someone faced the same problem and can someone answer how to fix it?