SQLSTATE[HY001] Unable to allocate sufficient memory

Question

I got some troubles upgrading my Laravel versions on a project. My server is running php7.4 and I can't get trough an error.

The errors :

From the trace it seems to appear here:

/**

     * Create a new PDO connection instance.

     *

     * @param  string  $dsn

     * @param  string  $username

     * @param  string  $password

     * @param  array  $options

     * @return \PDO

     */

    protected function createPdoConnection($dsn, $username, $password, $options)

    {

        if (class_exists(PDOConnection::class) && ! $this->isPersistentConnection($options)) {

            return new PDOConnection($dsn, $username, $password, $options);

        }

 

        return new PDO($dsn, $username, $password, $options);

    }

 

    /**

     * Determine if the connection is persistent.

     *

     * @param  array  $options

     * @return bool

     */

    protected function isPersistentConnection($options)

    {

        return isset($options[PDO::ATTR_PERSISTENT]) &&

               $options[PDO::ATTR_PERSISTENT];

    }



/**

I'm using the driver sqlsrv in my database.php file under config folder.

My Laravel version is 7.30.6.

I previously installed sqlsrv driver from Microsoft docs on Ubuntu 20.04 but somehow Laravel couldn't find the driver so I've installed the package php7.4-sybase and then I've come to the above error.