Xml-file too big for logstash?

Do I have to remove the @metadata everywhere in the file then? Cause I still get ruby exceptions for each event, and it's all basically still just one big Document, in this case called "otherField".

[ERROR] 2019-05-07 07:37:51.400 [[main]>worker0] ruby - Ruby exception occurred: undefined method `[]' for nil:NilClass
[ERROR] 2019-05-07 07:37:51.406 [[main]>worker0] ruby - Ruby exception occurred: undefined method `[]' for nil:NilClass
[ERROR] 2019-05-07 07:37:51.407 [[main]>worker0] ruby - Ruby exception occurred: undefined method `[]' for nil:NilClass
[ERROR] 2019-05-07 07:37:51.408 [[main]>worker0] ruby - Ruby exception occurred: undefined method `[]' for nil:NilClass
/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/awesome_print-1.7.0/lib/awesome_print/formatters/base_formatter.rb:31: warning: constant ::Fixnum is deprecated
{
          "path" => "/home/christiane/Dokumente/evtx_shortx.xml",
    "@timestamp" => 2019-05-07T05:37:49.798Z,
    "otherField" => {
            "xmlns" => "http://schemas.microsoft.com/win/2004/08/events/event",
        "EventData" => {
            "Data" => {
                "content" => "0xc00484b2",
                   "Name" => "Status"
            }
        },
           "System" => {
                     "Task" => "101",
              "Correlation" => {
                       "ActivityID" => "{0114a2a5-ba40-0001-b6a2-140140bad401}",
                "RelatedActivityID" => ""
            },
                 "Keywords" => "0x4000000000000012",
                  "Channel" => "Microsoft-Windows-AAD/Operational",
                   "Opcode" => "0",
                 "Security" => {
                "UserID" => "S-1-5-18"
            },
                 "Provider" => {
                "Guid" => "{4de9bc9c-b27a-43c9-8994-0915f1a5e24f}",
                "Name" => "Microsoft-Windows-AAD"
            },
              "TimeCreated" => {
                "SystemTime" => "2019-02-01 15:08:46.508312"
            },
                "Execution" => {
                 "ThreadID" => "696",
                "ProcessID" => "692"
            },
            "EventRecordID" => "19",
                  "Version" => "0",
                 "Computer" => "xxx",
                  "EventID" => {
                "Qualifiers" => "",
                   "content" => "1089"
            },
                    "Level" => "2"
        }
    },
     "@metadata" => {
        "host" => "christiane-ThinkPad-X240",
        "path" => "/home/christiane/Dokumente/evtx_shortx.xml"
    },
      "@version" => "1",
          "host" => "christiane-ThinkPad-X240",
        "theXML" => {},
          "tags" => [
        [0] "multiline",
        [1] "_rubyexception"
    ]
}
   .... (two more events)
{
          "path" => "/home/christiane/Dokumente/evtx_shortx.xml",
    "@timestamp" => 2019-05-07T05:37:49.798Z,
    "otherField" => {
            "xmlns" => "http://schemas.microsoft.com/win/2004/08/events/event",
        "EventData" => {
            "Data" => [
                [0] {
                    "content" => "Plugin initialize",
                       "Name" => "API"
                },
                [1] {
                    "content" => "3221521586",
                       "Name" => "Result"
                }
            ]
        },
           "System" => {
                     "Task" => "101",
              "Correlation" => {
                       "ActivityID" => "{bf1d25ff-bd56-0005-0026-1dbf56bdd401}",
                "RelatedActivityID" => ""
            },
                 "Keywords" => "0x4000000000000012",
                  "Channel" => "Microsoft-Windows-AAD/Operational",
                   "Opcode" => "0",
                 "Security" => {
                "UserID" => "S-1-5-18"
            },
                 "Provider" => {
                "Guid" => "{4de9bc9c-b27a-43c9-8994-0915f1a5e24f}",
                "Name" => "Microsoft-Windows-AAD"
            },
              "TimeCreated" => {
                "SystemTime" => "2019-02-05 13:29:08.712677"
            },
                "Execution" => {
                 "ThreadID" => "692",
                "ProcessID" => "688"
            },
            "EventRecordID" => "22",
                  "Version" => "0",
                 "Computer" => "xxx",
                  "EventID" => {
                "Qualifiers" => "",
                   "content" => "1104"
            },
                    "Level" => "2"
        }
    },
     "@metadata" => {
        "host" => "christiane-ThinkPad-X240",
        "path" => "/home/christiane/Dokumente/evtx_shortx.xml"
    },
      "@version" => "1",
          "host" => "christiane-ThinkPad-X240",
        "theXML" => {},
          "tags" => [
        [0] "multiline",
        [1] "_rubyexception"
    ]
}

(just removed two events from the output so that it fits)