Fatal error: Uncaught TypeError: PhpOffice\PhpSpreadsheet\Worksheet\Worksheet::getCell(): Argument #1 ($coordinate) must be of type string, array given, called in /home/samucomugk/douge/test_spread.php on line 38 and defined in /home/samucomugk/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Worksheet/Worksheet.php:1177 Stack trace: #0 /home/samucomugk/douge/test_spread.php(38): PhpOffice\PhpSpreadsheet\Worksheet\Worksheet->getCell(Array) #1 {main} thrown in /home/samucomugk/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Worksheet/Worksheet.php on line 1177