3 files changed, 5 insertions, 4 deletions

diff --git a/server/models/video/video-channel.ts b/server/models/video/video-channel.ts
index 112abf8cf..c077fb518 100644
--- a/server/models/video/video-channel.ts
+++ b/server/models/video/video-channel.ts
@@ -223,7 +223,7 @@ export class VideoChannelModel extends Model<VideoChannelModel> {
 
   @HasMany(() => VideoPlaylistModel, {
     foreignKey: {
-      allowNull: false
+      allowNull: true
     },
     onDelete: 'cascade',
     hooks: true
diff --git a/server/models/video/video-playlist-element.ts b/server/models/video/video-playlist-element.ts
index d76149d12..5530e0492 100644
--- a/server/models/video/video-playlist-element.ts
+++ b/server/models/video/video-playlist-element.ts
@@ -188,7 +188,8 @@ export class VideoPlaylistElementModel extends Model<VideoPlaylistElementModel>
           [Sequelize.Op.lte]: endPosition
         }
       },
-      transaction
+      transaction,
+      validate: false // We use a literal to update the position
     }
 
     return VideoPlaylistElementModel.update({ position: Sequelize.literal(`${newPosition} + "position" - ${firstPosition}`) }, query)
diff --git a/server/models/video/video-playlist.ts b/server/models/video/video-playlist.ts
index 93b8c2f58..397887ebf 100644
--- a/server/models/video/video-playlist.ts
+++ b/server/models/video/video-playlist.ts
@@ -197,7 +197,7 @@ export class VideoPlaylistModel extends Model<VideoPlaylistModel> {
 
   @BelongsTo(() => VideoChannelModel, {
     foreignKey: {
-      allowNull: false
+      allowNull: true
     },
     onDelete: 'CASCADE'
   })
@@ -351,7 +351,7 @@ export class VideoPlaylistModel extends Model<VideoPlaylistModel> {
       updatedAt: this.updatedAt,
 
       ownerAccount: this.OwnerAccount.toFormattedSummaryJSON(),
-      videoChannel: this.VideoChannel.toFormattedSummaryJSON()
+      videoChannel: this.VideoChannel ? this.VideoChannel.toFormattedSummaryJSON() : null
     }
   }