# Getting "missing trie node error"

**URL:** <https://forum.celo.org/t/getting-missing-trie-node-error/1062>\
**Category:** Dapps\
**Created:** [May 28, 2021, 3:07am UTC](https://forum.celo.org/t/getting-missing-trie-node-error/1062 "2021-05-28T03:07:29Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Tahlil1](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.celo.org/tahlil1/32/350_2.png) [@Tahlil1](https://forum.celo.org/u/Tahlil1)\
**Post date:** [May 28, 2021, 3:07am UTC](https://forum.celo.org/t/getting-missing-trie-node-error/1062/1 "2021-05-28T03:07:29Z")

</div>

I am using python contract kit, celo-sdk-py ([[GitHub - blaize-tech/celo-sdk-py](https://github.com/blaize-tech/celo-sdk-py)]

 ![Capture](https://us1.discourse-cdn.com/flex020/uploads/celo/original/1X/25d9d49022138d6b86ee5785140ff248db91c55f.png)  
([GitHub - blaize-tech/celo-sdk-py](https://github.com/blaize-tech/celo-sdk-py))) to interact with the Celo mainnet. I tried to call a contract method for a specific block number:

```auto
lending_pool_contract.functions.getUserReserveData('0x765DE816845861e75A25fCA122bb6898B8B1282a', web3.toChecksumAddress('0x86dba69d06f87F3FDEef5eDaE2ce63835187FD59')).call(block_identifier=6906115)

```

I am getting the following error(Missing trie node). This error does not occur if I choose one of the last 1000 block or something. How to resolve this?