When I enable TeamFolder on the interface and also the command line “sudo -u apache php /usr/local/nextcloud/occ app:enable groupfolders” it gives this error:
An unhandled exception has been thrown:
TypeError: json_decode(): Argument #1 ($json) must be of type string, null given in /usr/local/nextcloud/apps/groupfolders/lib/Folder/FolderManager.php:553
Stack trace:
#0 /usr/local/nextcloud/apps/groupfolders/lib/Folder/FolderManager.php(553): json_decode()
#1 /usr/local/nextcloud/apps/groupfolders/lib/Folder/FolderManager.php(87): OCA\\GroupFolders\\Folder\\FolderManager->rowToFolder()
#2 /usr/local/nextcloud/apps/groupfolders/lib/Migration/WrongDefaultQuotaRepairStep.php(32): OCA\\GroupFolders\\Folder\\FolderManager->getAllFolders()
#3 /usr/local/nextcloud/lib/private/Repair.php(107): OCA\\GroupFolders\\Migration\\WrongDefaultQuotaRepairStep->run()
#4 /usr/local/nextcloud/lib/private/legacy/OC_App.php(574): OC\\Repair->run()
#5 /usr/local/nextcloud/lib/private/Installer.php(548): OC_App::executeRepairSteps()
#6 /usr/local/nextcloud/lib/private/Installer.php(93): OC\\Installer->installAppLastSteps()
#7 /usr/local/nextcloud/core/Command/App/Enable.php(91): OC\\Installer->installApp()
#8 /usr/local/nextcloud/core/Command/App/Enable.php(64): OC\\Core\\Command\\App\\Enable->enableApp()
#9 /usr/local/nextcloud/3rdparty/symfony/console/Command/Command.php(326): OC\\Core\\Command\\App\\Enable->execute()
#10 /usr/local/nextcloud/3rdparty/symfony/console/Application.php(1078): Symfony\\Component\\Console\\Command\\Command->run()
#11 /usr/local/nextcloud/3rdparty/symfony/console/Application.php(324): Symfony\\Component\\Console\\Application->doRunCommand()
#12 /usr/local/nextcloud/3rdparty/symfony/console/Application.php(175): Symfony\\Component\\Console\\Application->doRun()
#13 /usr/local/nextcloud/lib/private/Console/Application.php(187): Symfony\\Component\\Console\\Application->run()
#14 /usr/local/nextcloud/console.php(90): OC\\Console\\Application->run()
#15 /usr/local/nextcloud/occ(33): require_once(‘…’)