[Forminator Pro] Forminator Pro plugin cause my site to go down.

This is the Error.
=============
An error of type E_ERROR was caused in line 61 of the file /home2/wai2eo0aflto/public_html/wp-content/plugins/forminator/library/fields/stripe.php. Error message: Uncaught Error: Class 'Forminator_Gateway_Stripe' not found in /home2/wai2eo0aflto/public_html/wp-content/plugins/forminator/library/fields/stripe.php:61
Stack trace:
#0 /home2/wai2eo0aflto/public_html/wp-content/plugins/forminator/library/class-loader.php(90): Forminator_Stripe->__construct()
#1 /home2/wai2eo0aflto/public_html/wp-content/plugins/forminator/library/class-loader.php(37): Forminator_Loader->init('stripe':wink:
#2 /home2/wai2eo0aflto/public_html/wp-content/plugins/forminator/library/class-form-fields.php(31): Forminator_Loader->load_files('library/fields':wink:
#3 /home2/wai2eo0aflto/public_html/wp-content/plugins/forminator/library/class-core.php(86): Forminator_Fields->__construct()
#4 /home2/wai2eo0aflto/public_html/wp-content/plugins/forminator/library/class-core.php(54): Forminator_Core->__construct()
#5 /home2/wai2eo0aflto/public_html/wp-content/plugins/forminator/forminator.php(336): Forminator_Core::get_instance()
#6 /home2/wai2eo0aflto/public_html/wp-content/plugins/forminator/forminator.php(107)