Error is generate by MainClass:
PDOException Object
(
    [message:protected] => SQLSTATE[HY001]: Memory allocation error: 1038 Out of sort memory, consider increasing server sort buffer size
    [string:Exception:private] => 
    [code:protected] => HY001
    [file:protected] => /var/www/vhost/OKFLORA/livrareflori.md/global/main/classes/Abstract/genericManager.abstract.php
    [line:protected] => 262
    [trace:Exception:private] => Array
        (
            [0] => Array
                (
                    [file] => /var/www/vhost/OKFLORA/livrareflori.md/global/main/classes/Abstract/genericManager.abstract.php
                    [line] => 262
                    [function] => execute
                    [class] => PDOStatement
                    [type] => ->
                )

            [1] => Array
                (
                    [file] => /var/www/vhost/OKFLORA/livrareflori.md/global/global/location/storages/locationManager.php
                    [line] => 46
                    [function] => getall
                    [class] => genericManager
                    [type] => ->
                )

            [2] => Array
                (
                    [file] => /var/www/vhost/OKFLORA/livrareflori.md/global/global/location/location.global.php
                    [line] => 1565
                    [function] => getall
                    [class] => locationManager
                    [type] => ->
                )

            [3] => Array
                (
                    [file] => /var/www/vhost/OKFLORA/livrareflori.md/global/global/location/location.global.php
                    [line] => 1519
                    [function] => GL_setcartlocation
                    [class] => locationModuleGlobal
                    [type] => ->
                )

            [4] => Array
                (
                    [file] => /var/www/vhost/OKFLORA/livrareflori.md/www/modules/_location/location.mod.php
                    [line] => 807
                    [function] => GL_setcartsession
                    [class] => locationModuleGlobal
                    [type] => ->
                )

            [5] => Array
                (
                    [function] => setlocationsession
                    [class] => locationModule
                    [type] => ->
                )

            [6] => Array
                (
                    [file] => /var/www/vhost/OKFLORA/livrareflori.md/global/main/classes/Abstract/genericApplication.class.php
                    [line] => 104
                    [function] => invoke
                    [class] => ReflectionMethod
                    [type] => ->
                )

            [7] => Array
                (
                    [file] => /var/www/vhost/OKFLORA/livrareflori.md/www/appl/application.class.php
                    [line] => 56
                    [function] => callFuncFromModule
                    [class] => genericApplication
                    [type] => ->
                )

            [8] => Array
                (
                    [file] => /var/www/vhost/OKFLORA/livrareflori.md/global/main/mainClass.class.php
                    [line] => 263
                    [function] => processModuleRequest
                    [class] => application
                    [type] => ->
                )

            [9] => Array
                (
                    [file] => /var/www/vhost/OKFLORA/livrareflori.md/global/main/mainClass.class.php
                    [line] => 241
                    [function] => processRequest
                    [class] => mainClass
                    [type] => ->
                )

            [10] => Array
                (
                    [file] => /var/www/vhost/OKFLORA/livrareflori.md/www/index.php
                    [line] => 52
                    [function] => processSiteRequest
                    [class] => mainClass
                    [type] => ->
                )

            [11] => Array
                (
                    [file] => /var/www/vhost/OKFLORA/livrareflori.md/www/indexnginx.php
                    [line] => 58
                    [args] => Array
                        (
                            [0] => /var/www/vhost/OKFLORA/livrareflori.md/www/index.php
                        )

                    [function] => require_once
                )

            [12] => Array
                (
                    [file] => /var/www/vhost/OKFLORA/livrareflori.md/www/indexnginx.php
                    [line] => 222
                    [function] => finish
                )

            [13] => Array
                (
                    [file] => /var/www/vhost/OKFLORA/livrareflori.md/www/indexnginx.php
                    [line] => 203
                    [function] => getResult
                )

            [14] => Array
                (
                    [file] => /var/www/vhost/OKFLORA/livrareflori.md/www/indexnginx.php
                    [line] => 324
                    [function] => checkModule
                )

        )

    [previous:Exception:private] => 
    [errorInfo] => Array
        (
            [0] => HY001
            [1] => 1038
            [2] => Out of sort memory, consider increasing server sort buffer size
        )

)