diff --git a/server/Server.js b/server/Server.js
index 8bbfa4d3..17466e86 100644
--- a/server/Server.js
+++ b/server/Server.js
@@ -182,7 +182,7 @@ class Server {
      * @see https://nodejs.org/api/process.html#event-unhandledrejection
      */
     process.on('unhandledRejection', async (reason, promise) => {
-      await Logger.fatal(`[Server] Unhandled rejection: ${reason}, promise:`, util.format('%O', promise))
+      await Logger.fatal('[Server] Unhandled rejection:', reason, '\npromise:', util.format('%O', promise))
       process.exit(1)
     })
   }
diff --git a/server/models/PlaybackSession.js b/server/models/PlaybackSession.js
index 5442387f..c7c6323a 100644
--- a/server/models/PlaybackSession.js
+++ b/server/models/PlaybackSession.js
@@ -117,7 +117,7 @@ class PlaybackSession extends Model {
 
   static createFromOld(oldPlaybackSession) {
     const playbackSession = this.getFromOld(oldPlaybackSession)
-    return this.create(playbackSession, {
+    return this.upsert(playbackSession, {
       silent: true
     })
   }