Photoprism open /crypto_keyfile.bin: permission denied

I setup photoprism following nixos documentation.
My configs, but i skipped nginx part from documentation and PHOTOPRISM_SITE_URL option.

services.photoprism = {
    enable = true;
    port = 2342;
    originalsPath = "/var/lib/private/photoprism/originals";
    settings = {
      PHOTOPRISM_ADMIN_USER = "admin";
      PHOTOPRISM_ADMIN_PASSWORD = "admin";
      PHOTOPRISM_DEFAULT_LOCALE = "en";
      PHOTOPRISM_DATABASE_DRIVER = "mysql";
      PHOTOPRISM_DATABASE_NAME = "photoprism";
      PHOTOPRISM_DATABASE_SERVER = "/run/mysqld/mysqld.sock";
      PHOTOPRISM_DATABASE_USER = "photoprism";
      PHOTOPRISM_SITE_TITLE = "PhotoPrism";
    };
  };
  services.mysql = {
    enable = true;
    dataDir = "/data/mysql";
    package = pkgs.mariadb;
    ensureDatabases = [ "photoprism" ];
    ensureUsers = [ {
      name = "photoprism";
      ensurePermissions = {
        "photoprism.*" = "ALL PRIVILEGES";
      };
    } ];
  };

Systemctl status

июн 01 20:22:06 pc photoprism-pre-start[3164]: time="2023-06-01T20:22:06+07:00" level=info msg="migrate: executing pre migrations"
июн 01 20:22:07 pc photoprism-pre-start[3164]: time="2023-06-01T20:22:07+07:00" level=info msg="migrate: executing main migrations"
июн 01 20:22:07 pc photoprism-pre-start[3164]: time="2023-06-01T20:22:07+07:00" level=info msg="completed in 123.376847ms"
июн 01 20:22:07 pc photoprism-pre-start[3164]: time="2023-06-01T20:22:07+07:00" level=info msg="closed database connection"
июн 01 20:22:07 pc systemd[1]: Started Photoprism server.
июн 01 20:22:10 pc photoprism-start[3184]: time="2023-06-01T20:22:10+07:00" level=info msg="PhotoPrism® needs your support!"
июн 01 20:22:10 pc photoprism-start[3184]: time="2023-06-01T20:22:10+07:00" level=info msg="Visit https://photoprism.app/membership to learn more."
июн 01 20:22:10 pc photoprism-start[3184]: time="2023-06-01T20:22:10+07:00" level=info msg="migrate: executing pre migrations"
июн 01 20:22:10 pc photoprism-start[3184]: time="2023-06-01T20:22:10+07:00" level=info msg="migrate: executing main migrations"
июн 01 20:22:10 pc photoprism-start[3184]: time="2023-06-01T20:22:10+07:00" level=error msg="open /crypto_keyfile.bin: permission denied"

I encountered a similar issue when I set up Photoprism for myself. It looks like Photoprism really does not like it when you have anything unexpected lying around in /. For me it helped to move everything away that it complained about.