Fatal error: Uncaught TypeError: Argument 1 passed to CGFeedback\comment_operations::save() must be an instance of CGFeedback\comment

Hello Robert,

Submitting the feedback form fails and ends in a white screen:

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Notice: Trying to get property of non-object in
/home/.../public_html/www.cmscanbesimple.org/modules/CGFeedback/action.default.php
on line 250

Fatal error: Uncaught TypeError: Argument 1 passed to
CGFeedback\comment_operations::save() must be an instance of CGFeedback\comment,
array given, called in
/home/.../public_html/www.cmscanbesimple.org/modules/CGFeedback/action.default.php
on line 264 and defined in
/home/.../public_html/www.cmscanbesimple.org/modules/CGFeedback/lib/class.comment_operations.php:125
Stack trace: #0
/home/.../public_html/www.cmscanbesimple.org/modules/CGFeedback/action.default.php(264):
CGFeedback\comment_operations->save(Array) #1
/home/.../public_html/www.cmscanbesimple.org/lib/classes/class.CMSModule.php(1415):
include('/home/.../...') #2
/home/.../public_html/www.cmscanbesimple.org/modules/CGExtensions/CGExtensions.module.php(622):
CMSModule->DoAction('default', 'm2411f', Array, '161') #3
/home/.../public_html/www.cmscanbesimple.org/lib/classes/class.CMSModule.php(1489):
CGExtensions->DoAction('default', 'm2411f', Array, '161') #4
/home/.../public_html/www.cmscanbesimple.org/lib/classes/internal/ in
/home/.../public_html/www.cmscanbesimple.org/modules/CGFeedback/lib/class.comment_operations.php
on line 125
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*** System Information ***
A regular install of CGFB and CGBlog,
No Captcha module
StopForumSpam Threshold Disabled

CMSMS 2.2.5
CGExtensions 1.58.1
CGFeedback 2.1
CGBlog 1.15.7
PHP 7.1.13

Tag in CGBlog detail template
{CGFeedback key1=$entry->canonical key2='Blog'
key3="{$smarty.server.REMOTE_ADDR}" redirectextra='#comments'}

Thanks, Rolf