Hello,

This error comes when your connection object is storing false. And it happens when the code is unable to connect to database due to some wrong configuration.

You need to check the database configuration $dbconf, like following:

Easy way to diagnose is to make an independent php code that connects to the database. And then use that configuration in datagrid code.

Hello, that’s exactly how I see it,

sometimes it doesn’t work, the whole thing under Laravel9 and Xampp
I can’t explain it, reload 5 pages 2 times it doesn’t work 3 times it gets even worse with the subgrid and then nothing works anymore.

The error is always the same:

Call to a member function SetFetchMode() on boolC:\xampp\htdocs\GP-SK\app\Classes\phpgrid\jqgrid_dist.php#128

Here my Config:

$db_conf = array (
    'type' => env('DB_TYPE'),
    'server' => env('DB_HOST'),
    'user' => env('DB_USERNAME'),
    'password' => env('DB_PASSWORD'),
    'database' => env('DB_DATABASE'),
);

Try use direct values instead of env function. May be laravel is unable to read from your .env file.
Let me know if issue persists.