You are using an older version of AG Grid. To upgrade, please see the migration guide.
Full Error Text
Full error message cannot be shown because there are missing parameters in the URL. Please
follow the full link from the developer tool logs.
As of v33.1, using "keyCreator" with the Rich Select Editor has been deprecated. It now requires the "formatValue" callback to convert complex data to strings.
To show this error text in the dev console, import the ValidationModule.
Related Doc Pages
The following documentation pages should provide additional context / guidance on how to
resolve this error.