I have had a bug since Php 7.4.6. In addition, the form does not email the content in the email. Thanks for your help

I have had a bug since Php 7.4.6. In addition, the form does not email the content in the email. Thanks for your help
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Warning: Creating default object from empty value in
/home/httpd/vhosts/fapp-net.ch/httpdocs/fapp-net/libraries/cegcore2/libs/helper.php
on line 22

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There is a Chronoforms Version 7 withot this Bug?

please try the latest v7 here:
http://www.chronoengine.com/blog
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The warning you get can be disabled if you disable error reporting in joomla global config, you should also disable the "advanced template" settong in the email settings!