Error message when sending test message

[SteveEngelking]

I may have done something wrong here. I have entered the bot APi and it is correct. Also the group name. Tested the cron job and that is OK. But I get the following error message: An error occurred while sending the message. Please check the correctness of the tags supported by Telegram in the custom parts of the message.Uncaught RuntimeException: Headers already sent at /mnt/web509/c3/71/563030271/htdocs/modules_v4/telegram/src/Services/TelegramService.php:390 in /mnt/web509/c3/71/563030271/htdocs/app/Http/Middleware/EmitResponse.php:87 Stack trace: #0 /mnt/web509/c3/71/563030271/htdocs/app/Http/Middleware/EmitResponse.php(57): Fisharebest\Webtrees\Http\Middleware\EmitResponse->assertHeadersNotEmitted() #1 /mnt/web509/c3/71/563030271/htdocs/app/Http/Dispatcher.php(76): Fisharebest\Webtrees\Http\Middleware\EmitResponse->process() #2 /mnt/web509/c3/71/563030271/htdocs/app/Http/Middleware/ErrorHandler.php(38): Psr\Http\Server\RequestHandlerInterface@anonymous->handle() #3 /mnt/web509/c3/71/563030271/htdocs/app/Http/Dispatcher.php(76): Fisharebest\Webtrees\Http\Middleware\ErrorHandler->process() #4 /mnt/web509/c3/71/563030271/htdocs/app/Http/Dispatcher.php(47): Psr\Http\Server\RequestHandlerInterface@anonymous->handle() #5 /mnt/web509/c3/71/563030271/htdocs/app/Webtrees.php(274): Fisharebest\Webtrees\Http\Dispatcher::dispatch() #6 /mnt/web509/c3/71/563030271/htdocs/app/Webtrees.php(247): Fisharebest\Webtrees\Webtrees->httpRequest() #7 /mnt/web509/c3/71/563030271/htdocs/index.php(24): Fisharebest\Webtrees\Webtrees->run() #8 {main} thrown
/mnt/web509/c3/71/563030271/htdocs/app/Http/Middleware/EmitResponse.php: 87

[Draky50110]

Same here and a 403 forbidden at the top of telegram module admin page :
Échec du test: file_get_contents(https://api.telegram.org/XXX:YYY/sendMessage): Failed to open stream: HTTP request failed! HTTP/1.1 403 Forbidden