I changed in my composer "laravel/framework": "^6.0". I ran the command composer update and I get an error and it's not updated.
My current version is 5.8.2 Thanks for the help!
Image with error:
From what I can see in the message in your screenshot, it looks like Laravel Omnipay may not yet be ready for laravel 6.0. According to the git page, it may not have been updated recently.
You may wish to check with the developer, Barryvdh, to see if there will be an upgrade coming soon.