Problem starting API

Hi Can anyone help me? I only get this message when starting API: "Your scripts are currently disabled due to an error that was detected. Please make appropriate changes to your scripts and click the "Save Script" button and we'll attempt to start running them again. More info... For reference, the error message generated was: Error setting up custom sheet: TypeError: First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.

I am using ad&d 2 ed sheet

I get the same error with a custom sheet of mine. Removing this code from the sheet fixed it for me: <script type="text/worker"> on("change:Climbing", function() { setAttrs({ ClimbingMod: 0 }); }); </script> This same code worked a month ago when we last played. It's not critical for my sheet, but I obviously would like to know how to fix it. Maybe an issue with the updated setAttr function from the last update?

I am not running custom sheet, but the standard sheet from Seth.