Trying to access array offset on value of type bool

[demorgia]

Hi, we perform a daily backup of our LARAVEL app along with database (MySQL), for some reason we are encountering the issue "Trying to access array offset on value of type bool" this behaviour is not permanent as sometimes the backup is successfully done and sometimes this issue is shown. Moreover, we have observed that our current backup has 78.6 GB size, the process copies around 68 GB of data and after that throws this error.

If we backup database & application separately, the database is successfully backed up, but while copying the application files, this error is thrown. Below is also the logs:

mportant: An error occurred while backing up PROCTORPRO

Exception message: Trying to access array offset on value of type bool

Exception trace: #0 /var/www/html/exam/vendor/phpseclib/phpseclib/phpseclib/Net/SSH2.php(3471): Illuminate\Foundation\Bootstrap\HandleExceptions->handleError() #1 /var/www/html/exam/vendor/phpseclib/phpseclib/phpseclib/Net/SSH2.php(3409): phpseclib\Net\SSH2->_filter() #2 /var/www/html/exam/vendor/phpseclib/phpseclib/phpseclib/Net/SSH2.php(3698): phpseclib\Net\SSH2->_get_binary_packet() #3 /var/www/html/exam/vendor/phpseclib/phpseclib/phpseclib/Net/SSH2.php(4072): phpseclib\Net\SSH2->_get_channel_packet() #4 /var/www/html/exam/vendor/phpseclib/phpseclib/phpseclib/Net/SFTP.php(2968): phpseclib\Net\SSH2->_send_channel_packet() #5 /var/www/html/exam/vendor/phpseclib/phpseclib/phpseclib/Net/SFTP.php(2046): phpseclib\Net\SFTP->_send_sftp_packet() #6 /var/www/html/exam/vendor/league/flysystem-sftp/src/SftpAdapter.php(445): phpseclib\Net\SFTP->put() #7 /var/www/html/exam/vendor/league/flysystem-sftp/src/SftpAdapter.php(424): League\Flysystem\Sftp\SftpAdapter->upload() #8 /var/www/html/exam/vendor/league/flysystem/src/Filesystem.php(88): League\Flysystem\Sftp\SftpAdapter->writeStream() #9 /var/www/html/exam/vendor/spatie/laravel-backup/src/BackupDestination/BackupDestination.php(92): League\Flysystem\Filesystem->writeStream() #10 /var/www/html/exam/vendor/spatie/laravel-backup/src/Tasks/Backup/BackupJob.php(272): Spatie\Backup\BackupDestination\BackupDestination->write() #11 /var/www/html/exam/vendor/laravel/framework/src/Illuminate/Support/Traits/EnumeratesValues.php(178): Spatie\Backup\Tasks\Backup\BackupJob->Spatie\Backup\Tasks\Backup{closure}() #12 /var/www/html/exam/vendor/spatie/laravel-backup/src/Tasks/Backup/BackupJob.php(282): Illuminate\Support\Collection->each() #13 /var/www/html/exam/vendor/spatie/laravel-backup/src/Tasks/Backup/BackupJob.php(155): Spatie\Backup\Tasks\Backup\BackupJob->copyToBackupDestinations() #14 /var/www/html/exam/vendor/spatie/laravel-backup/src/Commands/BackupCommand.php(56): Spatie\Backup\Tasks\Backup\BackupJob->run() #15 [internal function]: Spatie\Backup\Commands\BackupCommand->handle() #16 /var/www/html/exam/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(32): call_user_func_array() #17 /var/www/html/exam/vendor/laravel/framework/src/Illuminate/Container/Util.php(36): Illuminate\Container\BoundMethod::Illuminate\Container{closure}() #18 /var/www/html/exam/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(90): Illuminate\Container\Util::unwrapIfClosure() #19 /var/www/html/exam/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(34): Illuminate\Container\BoundMethod::callBoundMethod() #20 /var/www/html/exam/vendor/laravel/framework/src/Illuminate/Container/Container.php(592): Illuminate\Container\BoundMethod::call() #21 /var/www/html/exam/vendor/laravel/framework/src/Illuminate/Console/Command.php(134): Illuminate\Container\Container->call() #22 /var/www/html/exam/vendor/symfony/console/Command/Command.php(258): Illuminate\Console\Command->execute() #23 /var/www/html/exam/vendor/laravel/framework/src/Illuminate/Console/Command.php(121): Symfony\Component\Console\Command\Command->run() #24 /var/www/html/exam/vendor/spatie/laravel-backup/src/Commands/BaseCommand.php(16): Illuminate\Console\Command->run() #25 /var/www/html/exam/vendor/symfony/console/Application.php(911): Spatie\Backup\Commands\BaseCommand->run() #26 /var/www/html/exam/vendor/symfony/console/Application.php(264): Symfony\Component\Console\Application->doRunCommand() #27 /var/www/html/exam/vendor/symfony/console/Application.php(140): Symfony\Component\Console\Application->doRun() #28 /var/www/html/exam/vendor/laravel/framework/src/Illuminate/Console/Application.php(93): Symfony\Component\Console\Application->run() #29 /var/www/html/exam/vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(129): Illuminate\Console\Application->run() #30 /var/www/html/exam/artisan(37): Illuminate\Foundation\Console\Kernel->handle() #31 {main}

Kindly Help !!!!