Fatal error: Uncaught Error: Call to undefined function Dropbox\OAuth\Storage\mb_strlen() in /home/bailinst/public_html/TRANSFER/files/dispatch_dropbox_lib/Dropbox/OAuth/Storage/Encrypter.php:38 Stack trace: #0 /home/bailinst/public_html/TRANSFER/files/dispatch_dropbox_lib/setup.php(21): Dropbox\OAuth\Storage\Encrypter->__construct('XXXXXXXXXXXXXXX...') #1 {main} thrown in /home/bailinst/public_html/TRANSFER/files/dispatch_dropbox_lib/Dropbox/OAuth/Storage/Encrypter.php on line 38