There were changes made to Quick Base between the dates of October 24th - 27th which may affect your add-on tools. Please contact us directly if you experience this issue, we have a solution that will quickly restore functionality.
I work at a small environmental non-profit that uses Quick Base for almost all of our administrative work and list management. This is my 4th year hiring the Data Collaborative to set up custom add ons for our Quick Base applications. The quality of work has been excellent.