Activities don't load since upgrade to circles 28.0.0

[lars-becker]

When the activities app is called there's a flood of "Aktivitäten konnten nicht geladen werden." (activities couldn't be loaded) messages on Nextcloud 28.0.4.

The logs show a flood of messages like this one:

{
  "reqId": "XVaFiUDC3UN4hwh1q0ih",
  "level": 3,
  "time": "2024-04-21T01:50:41+00:00",
  "remoteAddr": "XXX_IPv6_XXX",
  "user": "XXX_USER_XXX",
  "app": "no app in context",
  "method": "GET",
  "url": "/ocs/v2.php/apps/activity/api/v2/activity/all?format=json&previews=true&since=0",
  "message": "Exception thrown: RuntimeException",
  "userAgent": "Mozilla/5.0 (X11; Linux x86_64; rv:125.0) Gecko/20100101 Firefox/125.0",
  "version": "28.0.4.1",
  "exception": {
    "Exception": "RuntimeException",
    "Message": "image not found: image:png webroot: serverroot:/data/nextcloud/site",
    "Code": 0,
    "Trace": [
      {
        "file": "/data/nextcloud/site/apps/circles/lib/Activity/Provider.php",
        "line": 96,
        "function": "imagePath",
        "class": "OC\\URLGenerator",
        "type": "->"
      },
      {
        "file": "/data/nextcloud/site/apps/circles/lib/Activity/Provider.php",
        "line": 67,
        "function": "setIcon",
        "class": "OCA\\Circles\\Activity\\Provider",
        "type": "->"
      },
      {
        "file": "/data/nextcloud/site/apps/activity/lib/GroupHelper.php",
        "line": 70,
        "function": "parse",
        "class": "OCA\\Circles\\Activity\\Provider",
        "type": "->"
      },
      {
        "file": "/data/nextcloud/site/apps/activity/lib/Data.php",
        "line": 248,
        "function": "addActivity",
        "class": "OCA\\Activity\\GroupHelper",
        "type": "->"
      },
      {
        "file": "/data/nextcloud/site/apps/activity/lib/Controller/APIv2Controller.php",
        "line": 205,
        "function": "get",
        "class": "OCA\\Activity\\Data",
        "type": "->"
      },
      {
        "file": "/data/nextcloud/site/apps/activity/lib/Controller/APIv2Controller.php",
        "line": 152,
        "function": "get",
        "class": "OCA\\Activity\\Controller\\APIv2Controller",
        "type": "->"
      },
      {
        "file": "/data/nextcloud/site/lib/private/AppFramework/Http/Dispatcher.php",
        "line": 230,
        "function": "getFilter",
        "class": "OCA\\Activity\\Controller\\APIv2Controller",
        "type": "->"
      },
      {
        "file": "/data/nextcloud/site/lib/private/AppFramework/Http/Dispatcher.php",
        "line": 137,
        "function": "executeController",
        "class": "OC\\AppFramework\\Http\\Dispatcher",
        "type": "->"
      },
      {
        "file": "/data/nextcloud/site/lib/private/AppFramework/App.php",
        "line": 184,
        "function": "dispatch",
        "class": "OC\\AppFramework\\Http\\Dispatcher",
        "type": "->"
      },
      {
        "file": "/data/nextcloud/site/lib/private/Route/Router.php",
        "line": 315,
        "function": "main",
        "class": "OC\\AppFramework\\App",
        "type": "::"
      },
      {
        "file": "/data/nextcloud/site/ocs/v1.php",
        "line": 65,
        "function": "match",
        "class": "OC\\Route\\Router",
        "type": "->"
      },
      {
        "file": "/data/nextcloud/site/ocs/v2.php",
        "line": 23,
        "args": [
          "/data/nextcloud/site/ocs/v1.php"
        ],
        "function": "require_once"
      }
    ],
    "File": "/data/nextcloud/site/lib/private/URLGenerator.php",
    "Line": 274,
    "CustomMessage": "Exception thrown: RuntimeException"
  },
  "id": "662470f231646"
}