I get this error with beta 3 of IOS 12

[deacix]

2018-07-04 11:37:24.970087+0200 FlowerShop[278:13584] [framework] -[CUINamedRecognitionGroup initWithName:contentsFromCatalog:usingRenditionKey:fromTheme:] couldn't find image named 'MyPot' skipping
2018-07-04 11:37:25.329133+0200 FlowerShop[278:13658] [Technique] ARWorldTrackingTechnique(0x108009270) error resetting object detection: ObjectDetectionCallbackNotSet
2018-07-04 11:37:25.400514+0200 FlowerShop[278:13702] [Technique] Failed to add 3D objects to VIO database
2018-07-04 11:37:25.401412+0200 FlowerShop[278:13702] [Session] Session (0x106513520): did fail with error: Error Domain=com.apple.arkit.error Code=301 UserInfo={NSLocalizedDescription=, NSLocalizedFailureReason=}