chronoforms 6 install problem on XAMPP (Joomla)

I installed chronoforms v6 for joomla on XAMPP, no install faults.
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When i open chronoforms 6 in components (Joomla) , i get the following error message':
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Warning: Creating default object from empty value in C:\xampp\htdocs\Joomla\libraries\cegcore2\libs\helper.php on line 22

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Anybody?

Problem solved: PHP version 7.4.4 is the problem, when i downgrade tot PHP vesrion 7.3.16 chronofroms v6 is working fine.
I think dat chronoforms v6 is not compatible with PHP vesrion 7.4.4