# Error - Oh Sheet! . Maybe too many tabs **URL:** \ **Category:** Ask for Help\ **Created:** [January 31, 2021, 2:24pm UTC](https://community.glideapps.com/t/error-oh-sheet-maybe-too-many-tabs/22024 "2021-01-31T14:24:35Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Antonio\_Marin](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/antonio_marin/32/7269_2.png) [@Antonio\_Marin](https://community.glideapps.com/u/Antonio_Marin)\ **Post date:** [January 31, 2021, 2:24pm UTC](https://community.glideapps.com/t/error-oh-sheet-maybe-too-many-tabs/22024/1 "2021-01-31T14:24:35Z")
Hi, I have an app that I want to duplicate, but I get the Error - Oh Sheet! I am the app´s author. > **[Obsession Surf Academy](https://copiaobsessionsurf.glideapp.io/)** > > En la Cresta de la Ola Maybe is that it times out because it has many tabs. I am going to see how can I downsize the spreadsheet, Regards. ---
**Author:** ![kyleheney](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/kyleheney/32/41173_2.png) [@kyleheney](https://community.glideapps.com/u/kyleheney)\ **Post date:** [January 31, 2021, 2:28pm UTC](https://community.glideapps.com/t/error-oh-sheet-maybe-too-many-tabs/22024/2 "2021-01-31T14:28:13Z")
Check for empty rows or columns too. Remove as much unnecessary data, rows and columns as possible. ---
**Author:** ![Antonio\_Marin](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/antonio_marin/32/7269_2.png) [@Antonio\_Marin](https://community.glideapps.com/u/Antonio_Marin)\ **Post date:** [January 31, 2021, 4:23pm UTC](https://community.glideapps.com/t/error-oh-sheet-maybe-too-many-tabs/22024/3 "2021-01-31T16:23:02Z")
I have removed empty rows and columns, as well as all formatting and some of the tabs, but still nothing. I am going to start the duplicate with the other Glide user from scratch.