The server is unable to execute your request. (the rights are ok)

Good evening to all, I come to see you because I can not access my nextcloud site, in the logs I have this.

[Sat Mar 19 19:02:57.158534 2022] [php7:notice] [pid 588] [client 45.89.174. 67:60262] {"reqId":"6t0mhUrUaLMQqmslUU24","level":3,"time":"2022-03-19T19:02:57+00:00","remoteAddr":"45.89.174.67","user":"--","app":"index","method":"POST","url":"/index. php/login", "message" : "Argument 1 passé à OC\\\\Core\\\\Controller\\\\LoginController::tryLogin() must be of the type string, null given, called in /var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher. php on line 217 in file '/var/www/nextcloud/core/Controller/LoginController.php' line 309", "userAgent" : "Mozilla/5.0 (X11 ; Fedora ; Linux x86_64 ; rv:98.0) Gecko/20100101 Firefox/98.0", "version" : "23.0.2. 1", "exception":{"Exception" : "Exception", "Message" : "Argument 1 passé à OC\\\\Core\\\\Controller\\\\LoginController::tryLogin() must be of the type string, null given, called in /var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php on line 217 in file '/var/www/nextcloud/core/Controller/LoginController. php' line 309", "Code":0, "Trace" :[{"file" : "/var/www/nextcloud/lib/private/AppFramework/App.php", "line":157, "function" : "dispatch", "class" : "OC\\\\AppFramework\\\\Http\\\\Dispatcher", "type" :"->"},{"file" : "/var/www/nextcloud/lib/private/Route/Router. php", "line":302, "function" : "main", "class" : "OC\\\\AppFramework\\\\App", "type" : " :"},{"file" : "/var/www/nextcloud/lib/base.php", "line":1006, "function" : "match", "class" : "OC\\\\Route\\\\Router", "type" : "->"},{"file" : "/var/www/nextcloud/index. php", "line":36, "function" : "handleRequest", "class" : "OC", "type" : " :"}], "File" : "/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher. php", "Line":158, "Previous":{"Exception" : "TypeError", "Message" : "L'argument 1 passé à OC\\\\Core\\\\Controller\\\\LoginController::tryLogin() doit être du type string, null given, appelé dans /var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher. php on line 217", "Code":0, "Trace" : [{"file" : "/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher. php", "line":217, "function" : "tryLogin", "class" : "OC\\\\Core\\\\Controller\\\\LoginController", "type" : "->", "args" :["*** sensitive parameters replaced ***"]},{"file" : "/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher. php", "line":126, "function" : "executeController", "class" : "OC\\\\AppFramework\\\\Http\\\\Dispatcher", "type" :"->"},{"file" : "/var/www/nextcloud/lib/private/AppFramework/App. php", "line":157, "function" : "dispatch", "class" : "OC\\\\AppFramework\\\\Http\\\\Dispatcher", "type" :"->"},{"file" : "/var/www/nextcloud/lib/private/Route/Router. php", "line":302, "function" : "main", "class" : "OC\\\\AppFramework\\\\App", "type" : " :"},{"file" : "/var/www/nextcloud/lib/base. php","line":1006,"function":"match","class":"OC\\\\Route\\\\Router","type":"->"},{"file":"/var/www/nextcloud/index. php", "line":36, "function" : "handleRequest", "class" : "OC", "type" : : "}], "File" : "/var/www/nextcloud/core/Controller/LoginController.php", "Line":309}, "CustomMessage" : "--"}}

Good evening to all, I come to see you because I can not access my nextcloud site, in the logs I have this. I can’t decipher a specific message, do you know where this can come from?

I specify that I have installed an IPS on this site https://crowdsec.net/ may be that the problem can be related but it is not sure (the problem persists when I deactivate “a plugin” supposed to be related)

I thank you in advance for your attention.

Sincerely