( ! ) Fatal error: Array and string offset access syntax with curly braces is no longer supported in C:\wamp64\www\crop_db\libs\JSON.php on line 156
Call Stack
#	Time	Memory	Function	Location
1	0.0002	447920	{main}( )	...\checkboxgroup.php:0
2	0.0002	448232	include_once( 'C:\wamp64\www\crop_db\components\editors\multi_choice_editor.php )	...\checkboxgroup.php:3
3	0.0002	448504	include_once( 'C:\wamp64\www\crop_db\components\editors\editors.php )	...\multi_choice_editor.php:3
4	0.0003	448864	include_once( 'C:\wamp64\www\crop_db\components\editors\autocomplete.php )	...\editors.php:3
5	0.0003	449136	include_once( 'C:\wamp64\www\crop_db\components\renderers\renderer.php )	...\autocomplete.php:3
6	0.0003	449424	include_once( 'C:\wamp64\www\crop_db\components\grid\grid.php )	...\renderer.php:7
7	0.0003	450032	include_once( 'C:\wamp64\www\crop_db\components\editors\multilevel_selection.php )	...\grid.php:6
8	0.0004	450304	include_once( 'C:\wamp64\www\crop_db\components\dataset\dataset.php )	...\multilevel_selection.php:5
9	0.0005	541792	include_once( 'C:\wamp64\www\crop_db\database_engine\engine.php )	...\dataset.php:3
10	0.0006	542064	include_once( 'C:\wamp64\www\crop_db\components\utils\sm_datetime.php )	...\engine.php:4
11	0.0006	542992	include_once( 'C:\wamp64\www\crop_db\components\utils\system_utils.php )	...\sm_datetime.php:4