Fatal error: Uncaught Error: Call to undefined method GuzzleHttp\Utils::chooseHandler() in /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/vendor/guzzlehttp/guzzle/src/functions.php:61
Stack trace:
#0 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/addons/EWR/Backup/vendor/guzzlehttp/guzzle/src/HandlerStack.php(42): GuzzleHttp\choose_handler()
#1 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/addons/EWR/Backup/vendor/guzzlehttp/guzzle/src/Client.php(65): GuzzleHttp\HandlerStack::create()
#2 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/addons/EWR/Backup/vendor/aws/aws-sdk-php/src/Handler/GuzzleV6/GuzzleHandler.php(26): GuzzleHttp\Client->__construct()
#3 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/vendor/aws/aws-sdk-php/src/functions.php(279): Aws\Handler\GuzzleV6\GuzzleHandler->__construct()
#4 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/addons/EWR/Backup/vendor/aws/aws-sdk-php/src/ClientResolver.php(652): Aws\default_http_handler()
#5 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/addons/EWR/Backup/vendor/aws/aws-sdk-php/src/ClientResolver.php(295): Aws\ClientResolver::_default_handler(Array)
#6 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/addons/EWR/Backup/vendor/aws/aws-sdk-php/src/AwsClient.php(199): Aws\ClientResolver->resolve(Array, Object(Aws\HandlerList))
#7 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/addons/EWR/Backup/vendor/aws/aws-sdk-php/src/S3/S3Client.php(346): Aws\AwsClient->__construct(Array)
#8 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/config.php(19): Aws\S3\S3Client->__construct(Array)
#9 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/config.php(33): XF\App->{closure}()
#10 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/XF/FsMounts.php(24): XF\App->{closure}()
#11 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/XF/App.php(1307): XF\FsMounts::loadDefaultMounts(Array)
#12 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/XF/Container.php(33): XF\App->XF\{closure}(Object(XF\Container))
#13 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/XF/App.php(3073): XF\Container->offsetGet('...')
#14 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/XF.php(1252): XF\App->fs()
#15 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/XF/Util/File.php(783): XF::fs()
#16 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/XF/Error.php(372): XF\Util\File::installLockExists()
#17 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/XF/App.php(2842): XF\Error->displayFatalExceptionMessage(Object(Error))
#18 /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/XF.php(250): XF\App->displayFatalExceptionMessage(Object(Error))
#19 [internal function]: XF::handleException(Object(Error))
#20 {main}
thrown in /mnt/volume_nyc3_01_web/web/masterblasterhome.com/public_html/src/vendor/guzzlehttp/guzzle/src/functions.php on line 61