WHMCS InvalidArgumentException: Data missing … Carbon.php:425 Checking System Health

Description

When doing a fresh installation of WHMCS on a PHP 7.4 system you might encounter the error below:

InvalidArgumentException: Data missing in /home/sitename/public_html/vendor/nesbot/carbon/src/Carbon/Carbon.php:425

Resolution

Downgrading to PHP 7.3 solved the problem.

 

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