NextCloud : Erreur interne du serveur

hello i want to ask about my problem


i installed keycloak and configured it then i installed nextcloud and configured it
for now all work fine after that i installed openid connect backend and i configured it when i did that i doesn’t show me the login page i want to know what is the problem and here is the log file (cat /home/clouddata/nextcloud.log):

{
    "reqId": "Y-SdkED4ZYD1vVtV@IHnrQAAAAs",
    "level": 3,
    "time": "2023-02-21T10:31:44+00:00",
    "remoteAddr": "192.168.100.152",
    "user": "--",
    "app": "index",
    "method": "GET",
    "url": "/index.php/login",
    "message": {
        "Exception": "Exception",
        "Message": "Session has been closed - no further changes to the session are allowed",
        "Code": 0,
        "Trace": [
            {
                "file": "/var/www/html/nextcloud/lib/private/Session/Memory.php",
                "line": 84,
                "function": "validateSession",
                "class": "OC\\Session\\Memory",
                "type": "->"
            },
            {
                "file": "/var/www/html/nextcloud/core/Controller/LoginController.php",
                "line": 163,
                "function": "remove",
                "class": "OC\\Session\\Memory",
                "type": "->"
            },
            {
                "file": "/var/www/html/nextcloud/lib/private/AppFramework/Http/Dispatcher.php",
                "line": 169,
                "function": "showLoginForm",
                "class": "OC\\Core\\Controller\\LoginController",
                "type": "->"
            },
            {
                "file": "/var/www/html/nextcloud/lib/private/AppFramework/Http/Dispatcher.php",
                "line": 100,
                "function": "executeController",
                "class": "OC\\AppFramework\\Http\\Dispatcher",
                "type": "->"
            },
            {
                "file": "/var/www/html/nextcloud/lib/private/AppFramework/App.php",
                "line": 152,
                "function": "dispatch",
                "class": "OC\\AppFramework\\Http\\Dispatcher",
                "type": "->"
            },
            {
                "file": "/var/www/html/nextcloud/lib/private/Route/Router.php",
                "line": 308,
                "function": "main",
                "class": "OC\\AppFramework\\App",
                "type": "::"
            },
            {
                "file": "/var/www/html/nextcloud/lib/base.php",
                "line": 1009,
                "function": "match",
                "class": "OC\\Route\\Router",
                "type": "->"
            },
            {
                "file": "/var/www/html/nextcloud/index.php",
                "line": 37,
                "function": "handleRequest",
                "class": "OC",
                "type": "::"
            }
        ],
        "File": "/var/www/html/nextcloud/lib/private/Session/Memory.php",
        "Line": 125,
        "CustomMessage": "--"
    },
    "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36 Edg/110.0.1587.50",
    "version": "20.0.0.9"
}


What kind of system do you have? The memory error not sure if that is a lack of memory…

NC 20 is also not supported any more, so possible bugs won’t be repaired…

Okey Thanks