Render Image and 3d model in EasyAR4 with openGL

We were working on EasyAR 2 with Android. The SDK did not provide any libraries for displaying an image or a 3d object as an augmentation popup. The SDK only had a library for video, meaning they provided the code that displays a video on top of the camera view when identifying an object. The SDK also provided a BoxRenderer in order to display a 3d Box as an augmentation. We have an ImageRenderer and an ObjectRenderer class that use OpenGL to display images (see image below) and objects as augmentations that was working fine in EasyAR2 but for some reason images and objects are not displayed at EasyAR4. We believe that images are objects are rendered but not displayed. The EasyAR library has a GLView class that it was altered in the newest version. So, we need assistance to fix our renderers that worked perfectly in the previous version. Since the libraries were working fine before the update we think the task is relative easy for someone with OpenGl knowledge. We can provide a demo android project. The issue is to find a fix for our ImageRenderer and ObjectRenderer.