Let stitch know that their software introduced this bug, they might already have a fix for it

Only other thing I can think of is to call intuit and have them log in and see if they can deal with it.

Resolution for 'autofill field issue: 'Pre-fill forms / auto-fill field WILL NOT turn off' available: Yes.

The autofill field issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the autofill field issue yourself by looking for a resolution described in the article. If it is a complex autofill field issue or you are unable to solve the issue, you may contact us by clicking here or by using other autofill field support options.

For more information about resolving issues related to autofill field in Quickbooks/QBO or to get support for the issue 'Pre-fill forms / auto-fill field WILL NOT turn off', click the link below: