ERROR: DOMDocument::loadXML(): Argument #1 ($source) must be of type string, array given

[francoistambwe]

Hi everyone.
I followed the instructions on the link:
https://www.youtube.com/watch?v=pBJ9KrZcGeA&feature=youtu.be

But when I connect, I get the following error:
[2023-11-18 14:17:38] production.ERROR: DOMDocument::loadXML(): Argument #1 ($source) must be of type string, array given {"userId":1, "exception":"[object] (TypeError(code: 0): DOMDocument::loadXML(): Argument #1 ($source) must be of type string, array given at /home/y9jyedslggq9/public_html/vendor/otifsolutions/curl-handler/src/Helpers/Helper.php:33)
[stacktrace]

I installed it twice with the same result. What mistake could I have made?