Checkbox Column Formula Error in Clay: Boolean Conversion Issue

Hi Clay Team- Bruno R. i created a check box column and ran a formula to return True (check the box) and am getting the right output with the following message "Whoops! This value could not be converted to this column's data type (boolean). Here's the table: https://app.clay.com/workspaces/507736/workbooks/wb_NFfNxS5AZDkx/tables/t_wkTTHdRoonAS/views/gv_J2hemjmiC5Z3 The output is correct but why is this error message present?