Typefitter displays "A call to a Web Service..." message during activation

A single license for Typefitter can be activated on up to two computers used exclusively by the same person. When the activation limit has been reached, you may see this error message:

A call to a Web Service succeeded, but the functionality of the Web Service returned an indicator of failure.

If you are experiencing this error, please do one of the following:

• Deactivate the existing installation bringing down the total number of devices to "2" per LicenseID. From InDesign's Help menu, select Deactivate Typefi Plug-in → Deactivate Typefitter to deactivate Typefitter. There is no need to quit and re-launch InDesign to complete the deactivation.
• Visit https://www.typefi.com/typefitter/ and purchase an additional license of Typefitter.
• Contact our support via email, typefitter@typefi.com, and request that the activation limit be increased to allow for an additional activation if unable to license a second device (or migrate the first license to another device).