RSStoEmail Critical Issue

[mikew]

Your software
My Mautic version is: 4.4.4
My PHP version is: 8.0

No idea but rss feeder is not working in preview and giving me critical error:

[2022-11-03 16:53:08] mautic.CRITICAL: Uncaught PHP Exception Symfony\Component\Debug\Exception\FatalThrowableError: "implode(): Argument #2 ($array) must be of type ?array, string given" at /var/www/mautic/plugins/MauticRssToEmailBundle/vendor/simplepie/simplepie/library/SimplePie/Parse/Date.php line 544 {"exception":"[object] (Symfony\\Component\\Debug\\Exception\\FatalThrowableError(code: 0): implode(): Argument #2 ($array) must be of type ?array, string given at /var/www/mautic/plugins/MauticRssToEmailBundle/vendor/simplepie/simplepie/library/SimplePie/Parse/Date.php:544)"} {"hostname":"mymautic.com","pid":807300}

same email code working in other instances

[techbill]

Try changing your php to 7.4

[mikew]

I was just about to write that this is the answer. That is what I did and it worked.