Generate Auto Template not working

I have a little problem with my forms. I can't auto generate an email template using Generate Auto Template button within email sending event dialog.
I had this ability immediately after chronoforms v4 installation, but now the browser loads an empty page after clicking on this button. It's not a critical error, but I have a few veeery long forms and it could take hours to do something that autogenerator could do within seconds.
Regards,

Hi Pawel,

A completely blank page is usually an indicator of a PHP Error. Please try temporarily setting your Site Error Reporting to Maximum in the Site Global Configuration and see if you get a more helpful error message.

Bob

Might be a related problem, I find the "generate auto template" button always generates the html from the first time I clicked this button. It does not add new fields created since and it includes fields that have since been deleted from the form. Any advice would be gratefully received. I put the website in maximum error reporting but did not see any errors. This is chronoforms v4 on Joomla 1.7.3.

[Might be a related problem, I find the "generate auto template" button always generates the html from the first time I clicked this button]

Clearing the browser cache resolves the problem I had.