We see errors “Failed to execute transaction” in our form

Yes, we have the same problem together with other errors “Failed to execute transaction”.

Almost no errors for a year. Now daily basis.

Welcome back tot he community, @stcb! Could you also let us know on when you get this error? I mean do you get it when you load your blank form or when you try to edit a submission on the server?

Thank you! on both occasions.

@stcb, have you validated your XLSForm through this online validator? The online validator should help you identify syntax issues if any.

Yes we’ve been using the forms for more than a year

It happens during submission or loading from draft or saving to draft.