[Plugin: infoGeniuz Form Analytics for Contact Form 7] [InfoGeniuz Form Analytics for Contact Form 7

Tried to install the plugin, but at activation received the following error:

Plugin could not be activated because it triggered a fatal error.

Warning: fopen([my homedir]/wp-content/plugins/infogeniuz-form-analytics-for-contact-form-7/bkp_classes.txt): failed to open stream: Permission denied in [my homedir]/wp-content/plugins/infogeniuz-form-analytics-for-contact-form-7/infoGeniuz_Form_Analytics_for_Contact_Form_7.php on line 61 can’t open file