One particular version of FrontlineSMS had a bug which returned a ‘no Forms’ message on use of keywords – the infamous ‘no forms’ error.

This issue has been fixed in subsequent releases of FrontlineSMS, so we recommend that you upgrade your version of FrontlineSMS.

Alternatively, if you are not using FrontlineForms, you could fix the issue manually by removing the Forms message handler:

From the ~/FrontlineSMS/properties/app.properties file, remove this line:
forms.message.handler=com.masabi.frontlinesms.forms.MasabiFormsMessageHandler

For more information on this error message, see the online discussion thread.