vm.start
{
  "id": "9a540088-556f-30ba-434f-317697ca6532",
  "bypassMacAddressesCheck": false,
  "force": false
}
{
  "code": "INTERNAL_ERROR",
  "params": [
    "xenopsd internal error: (Failure
  \"Error from xenguesthelper: xenguest: xc_dom_parse_image: [2] panic: xc_dom_core.c:693: xc_dom_find_loader: no loader found\")"
  ],
  "call": {
    "method": "VM.start",
    "params": [
      "OpaqueRef:c817057a-3994-4447-8ed1-8322610029c9",
      false,
      false
    ]
  },
  "message": "INTERNAL_ERROR(xenopsd internal error: (Failure
  \"Error from xenguesthelper: xenguest: xc_dom_parse_image: [2] panic: xc_dom_core.c:693: xc_dom_find_loader: no loader found\"))",
  "name": "XapiError",
  "stack": "XapiError: INTERNAL_ERROR(xenopsd internal error: (Failure
  \"Error from xenguesthelper: xenguest: xc_dom_parse_image: [2] panic: xc_dom_core.c:693: xc_dom_find_loader: no loader found\"))
    at Function.wrap (/opt/xen-orchestra/packages/xen-api/src/_XapiError.js:16:12)
    at /opt/xen-orchestra/packages/xen-api/src/transports/json-rpc.js:35:21
    at runNextTicks (node:internal/process/task_queues:60:5)
    at processImmediate (node:internal/timers:447:9)
    at process.callbackTrampoline (node:internal/async_hooks:130:17)"
}

Maybe because this VM was created as 18.04 some years ago? How can i fix that