# Cannot read properties of undefined (reading 'toLowerCase')

**URL:** <https://community.metamask.com/t/cannot-read-properties-of-undefined-reading-tolowercase/28128>\
**Category:** Interacting with Web3 Sites\
**Created:** [February 5, 2024, 10:43am UTC](https://community.metamask.com/t/cannot-read-properties-of-undefined-reading-tolowercase/28128 "2024-02-05T10:43:27Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![leadbatterypack](https://avatars.discourse-cdn.com/v4/letter/l/7ba0ec/32.png) [@leadbatterypack](https://community.metamask.com/u/leadbatterypack)\
**Post date:** [February 5, 2024, 10:43am UTC](https://community.metamask.com/t/cannot-read-properties-of-undefined-reading-tolowercase/28128/1 "2024-02-05T10:43:27Z")

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I’m trying to withdraw some assets on Compound and I get the following error: Cannot read properties of undefined (reading ‘toLowerCase’). Below is a screenshot from Chrome’s dev console.

 ![image](https://europe1.discourse-cdn.com/metamask/original/3X/2/f/2fa363c9a03ca24c8afca8d541459693a09c1079.png)

Does anyone know how to fix this? I tried interacting with Compound’s other functionalities and it works, but withdrawing seems to be what’s broken.

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**Author:** ![nakedwinnie](https://dub1.discourse-cdn.com/metamask/user_avatar/community.metamask.com/nakedwinnie/32/5551_2.png) [@nakedwinnie](https://community.metamask.com/u/nakedwinnie)\
**Post date:** [February 5, 2024, 3:51pm UTC](https://community.metamask.com/t/cannot-read-properties-of-undefined-reading-tolowercase/28128/2 "2024-02-05T15:51:54Z")

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Sounds like a bug, please reach out to MetaMask Support.

- Visit : [https://support.metamask.io/](https://support.metamask.io/)

- Click the large blue “start a conversation” bubble in the upper middle of page, looks like this:

[![](https://europe1.discourse-cdn.com/metamask/original/3X/b/7/b74bc3bd3f7935c5ca91d9aaa22329d15d6fd4d1.png) ](https://europe1.discourse-cdn.com/metamask/original/3X/b/7/b74bc3bd3f7935c5ca91d9aaa22329d15d6fd4d1.png)

- This will connect you to a bot at first, answer some questions and it will open a ticket for you with an agent.

Remember - NOBODY, including from support, will ask for your secret recovery phrase or for you to input it onto any website for confirmation.

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**Author:** ![system](https://europe1.discourse-cdn.com/metamask/original/3X/3/8/3812168020a49f264784b1dbfcf12435abbb09ad.png) [@system](https://community.metamask.com/u/system)\
**Post date:** [March 6, 2024, 10:44am UTC](https://community.metamask.com/t/cannot-read-properties-of-undefined-reading-tolowercase/28128/3 "2024-03-06T10:44:02Z")

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Closed on March 6, 2024, 10:44am UTC

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