Laravel 6 and higher (proc_open Error)

It is because of Flare error reporting service enabled in debug mode There is a workaround for this.

Publish flare config file php artisan vendor:publish –tag=flare-config

and in config/flare.php

Set

'collect_git_information' => false,
'reporting' => [
     'anonymize_ips' => true,
     'collect_git_information' => false,
     'report_queries' => true,
     'maximum_number_of_collected_queries' => 200,
     'report_query_bindings' => true,
     'report_view_data' => true,
],

If all not working then do below
Turn off “Disable Functions”