HTML5/WebGL: Game Not loading or frequent crashes

[PeteT]

100001068409015
Black screen on apple safari this is message underneath.

2021-01-27 19:06:23.456 INFOCheckpoint-B-000 - Initialized
2021-01-27 19:06:23.457 LOGFT Client Services Inited.
2021-01-27 19:06:23.478 LOGSessionId: 271906
Browser: unknown: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.2 Safari/605.1.15
WebGL Supported and Enabled. Type: WebGL 1.0
GPU-Vendor: NVIDIA Corporation
GPU-Renderer: NVIDIA GeForce GT 755M OpenGL Engine
2021-01-27 19:06:24.005 LOGWarning: Your browser does not support "WebGL 2.0" Graphics API, switching to "WebGL 1.0"
2021-01-27 19:06:27.634 LOGIndexedDB is not available. Data will not persist in cache and PlayerPrefs will not be saved.