Changing objectstore

I change objectstore to OC\\Files\\ObjectStore\\S3
When I create new user , the new user can user the service

But old users , including admin user have internal server error

Here is a log

{"reqId":"u0YlxwfvUmH6SOzSq7mh","level":3,"time":"2018-09-06T08:32:29+00:00","remoteAddr":"x.x.x.x","user":"admin","app":"index","method":"GET","url":"\/apps\/files\/","message":"Exception: {\"Exception\":\"OCP\\\\Files\\\\NotFoundException\",\"Message\":\"\",\"Code\":0,\"Trace\":\"#0 \\\/html\\\/apps\\\/files\\\/lib\\\/Controller\\\/ViewController.php(131): OC_Helper::getStorageInfo('\\\/', false)\\n#1 \\\/html\\\/apps\\\/files\\\/lib\\\/Controller\\\/ViewController.php(160): OCA\\\\Files\\\\Controller\\\\ViewController->getStorageInfo()\\n#2 [internal function]: OCA\\\\Files\\\\Controller\\\\ViewController->index('', '', NULL, false)\\n#3 \\\/html\\\/lib\\\/private\\\/AppFramework\\\/Http\\\/Dispatcher.php(161): call_user_func_array(Array, Array)\\n#4 \\\/html\\\/lib\\\/private\\\/AppFramework\\\/Http\\\/Dispatcher.php(91): OC\\\\AppFramework\\\\Http\\\\Dispatcher->executeController(Object(OCA\\\\Files\\\\Controller\\\\ViewController), 'index')\\n#5 \\\/html\\\/lib\\\/private\\\/AppFramework\\\/App.php(115): OC\\\\AppFramework\\\\Http\\\\Dispatcher->dispatch(Object(OCA\\\\Files\\\\Controller\\\\ViewController), 'index')\\n#6 \\\/html\\\/lib\\\/private\\\/AppFramework\\\/Routing\\\/RouteActionHandler.php(47): OC\\\\AppFramework\\\\App::main('ViewController', 'index', Object(OC\\\\AppFramework\\\\DependencyInjection\\\\DIContainer), Array)\\n#7 [internal function]: OC\\\\AppFramework\\\\Routing\\\\RouteActionHandler->__invoke(Array)\\n#8 \\\/html\\\/lib\\\/private\\\/Route\\\/Router.php(297): call_user_func(Object(OC\\\\AppFramework\\\\Routing\\\\RouteActionHandler), Array)\\n#9 \\\/html\\\/lib\\\/base.php(999): OC\\\\Route\\\\Router->match('\\\/apps\\\/files\\\/')\\n#10 \\\/html\\\/index.php(42): OC::handleRequest()\\n#11 {main}\",\"File\":\"\\\/html\\\/lib\\\/private\\\/legacy\\\/helper.php\",\"Line\":544}","userAgent":"Mozilla\/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/68.0.3440.106 Safari\/537.36","version":"13.0.6.1"}

Hello,

I am facing the same problem and I did not find an answer until now.

Best regards