( ! ) Fatal error: Uncaught Error: Interface 'PhpOffice\PhpSpreadsheet\IComparable' not found in /home/choraleu/metz.chorale-universitaire-nancy.com/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Style/Supervisor.php on line 9
( ! ) Error: Interface 'PhpOffice\PhpSpreadsheet\IComparable' not found in /home/choraleu/metz.chorale-universitaire-nancy.com/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Style/Supervisor.php on line 9
Call Stack
#	Time	Memory	Function	Location
1	0.0032	413624	{main}( )	.../Supervisor.php:0