Help witch Whatsapp api

Hi,
we have some problems with whatsapp classes.
We have try with many versions of php but we have always error

[Fri Jan 20 09:14:11.092538 2023] [proxy_fcgi:error] [pid 6577:tid 140351796926208] [client 195.32.122.159:0] AH01071: Got error 'PHP message: PHP Fatal error: Uncaught TypeError: Mateodioev\\WhatsappApi\\Api::send(): Return value must be of type stdClass, Mateodioev\\Utils\\fakeStdClass returned in /home/netpnet/domains/netparking.net/public_html/whlib/vendor/phpclasses/php-whatsapp-api/src/Api.php:47\nStack trace:\n#0 /home/netpnet/domains/netparking.net/public_html/whlib/vendor/phpclasses/php-whatsapp-api/src/Messages.php(63): Mateodioev\\WhatsappApi\\Api->send()\n#1 /home/netpnet/domains/netparking.net/public_html/whlib/demo.php(15): Mateodioev\\WhatsappApi\\Messages->sendText()\n#2 {main}\n thrown in /home/netpnet/domains/netparking.net/public_html/whlib/vendor/phpclasses/php-whatsapp-api/src/Api.php on line 47'

Can you explayn us for error please?

Thanks you very much for you support

Hi. Having the same error... I´ve installed PHP 8.