Dn does not start

Hello Adobe, unfortunately dimension works for me for a long time and I have unfortunately not received any answers from. I have a Mac 2010, Graphics Radeon RX 480 Type: GPU, VRAM (total): 8 GB, AMD, Mac Vid Cards Metal: Supported, function set macOS GPUFamily2 v1, System 10.14.6,

2x 3.46 GHz, 6 Core Intel, memory 128 GB. Why does dimension start briefly and then freeze. I can only close immediately by pressing. I also reinstalled everything without success.