# \#elem-undef **URL:** https://community.weweb.io/tag/elem-undef/68.md [Latest](https://community.weweb.io/latest.md) · [Categories](https://community.weweb.io/categories.md) · [Tags](https://community.weweb.io/tags.md) --- ## [What to do in case of an ELEM UNDEF error](https://community.weweb.io/t/what-to-do-in-case-of-an-elem-undef-error/5335)
**Author:** [@Joyce](https://community.weweb.io/u/Joyce)\ **Replies:** 19\ **Last updated:** [April 26, 2024, 7:01pm UTC](https://community.weweb.io/t/what-to-do-in-case-of-an-elem-undef-error/5335 "2024-04-26T19:01:54Z")
Hey there :waving\_hand: You may have noticed an ELEM UNDEF error message appearing in some of your apps recently. This happens when we have a synchronisation issue, your data is still there but unreadable by the editor. …