Hi,
I'm facing the issue while using this package with Laravel 7 and newest version of Laravel Passport. It's because this package has symfony/psr-http-message-bridge ^1.1 dependency while newest Laravel Passport for Laravel 7 has symfony/psr-http-message-bridge ^2.0 (Laravel documentation is also recommending installing newer version if you want to use psr7 requests).
Is there any chance to update this dependency?
Remove vendor folder and use version 7.5 of laravel passport instead: "laravel/passport": "^7.5",
then do a composer install again.