# Cannot reach collections after upgrading to v8

**URL:** <https://community.forestadmin.com/t/cannot-reach-collections-after-upgrading-to-v8/6506>\
**Category:** Help me!\
**Created:** [July 17, 2023, 9:27am UTC](https://community.forestadmin.com/t/cannot-reach-collections-after-upgrading-to-v8/6506 "2023-07-17T09:27:47Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![anon7284711](https://avatars.discourse-cdn.com/v4/letter/a/ac8455/32.png) [@anon7284711](https://community.forestadmin.com/u/anon7284711)\
**Post date:** [July 19, 2023, 10:11am UTC](https://community.forestadmin.com/t/cannot-reach-collections-after-upgrading-to-v8/6506/5 "2023-07-19T10:11:46Z")

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Hello @Soufiane,

I’m coming back to you as this topic has not been answered nor marked as resolved.

The error you got is linked to a [breaking change while upgrading to v8](https://docs.forestadmin.com/documentation/extra-help/maintain/upgrade-notes-sql-mongodb/upgrade-to-v8#cors-allowed-headers), as shared on [the other topic](https://community.forestadmin.com/t/smart-action-hooks-change-doesnt-work-when-upgrating-to-v8/6508/3).

Do you still encounter issues or can we mark this as resolved ?

Best regards,

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_[View the full topic](https://community.forestadmin.com/t/cannot-reach-collections-after-upgrading-to-v8/6506)._