What is this ! sign in my App?

[Eloy_Paredes_He]

Hello there,
My App is showing the ! mark shown in the picture.
I know I messed with the source data sheet but now I don´t know what to do in order make it go away.

Thank you!

[Eloy_Paredes_He · Accepted solution]

Solved! I just deleted the table from the source data and created it again.

[Grant_Stead]

That usually indicates that your REF can’t be found…

[Steve]

https://community.appsheet.com/search?q=yellow%20triangle

[Eloy_Paredes_He]

Thank you Steve. I struggled with the references when a label is shown instead of the key column. But could finally fix it.
Thanks for the help as usual