Zwave no longer working

I’ve been running home assistant on a RPi4 for a month with my Aeotec zwave stick through a USB 2 hub working. Today, zwave no longer works. I have deleted rebooted and added the zwave integration using both /dev/serial/by-id/usb-0658_0200-if00 and /dev/ttyAMA0. Looking at the log, the zwave driver is failing.

The installation is home assistant under raspian which I know isn’t officially supported, but why is it suddenly failing?

2020-12-13 19:32:29.933 Always, OpenZwave Version 1.4.3469 Starting Up
2020-12-13 19:33:07.316 Info, Setting Up Provided Network Key for Secure Communications
2020-12-13 19:33:07.317 Info, mgr,     Added driver for controller /dev/ttyAMA0
2020-12-13 19:33:07.317 Info,   Opening controller /dev/ttyAMA0
2020-12-13 19:33:07.317 Info, Trying to open serial port /dev/ttyAMA0 (attempt 1)
2020-12-13 19:33:07.317 Info, Serial port /dev/ttyAMA0 opened (attempt 1)
2020-12-13 19:33:07.318 Detail, contrlr, Queuing (Command) FUNC_ID_ZW_GET_VERSION: 0x01, 0x03, 0x00, 0x15, 0xe9
2020-12-13 19:33:07.318 Detail, contrlr, Queuing (Command) FUNC_ID_ZW_MEMORY_GET_ID: 0x01, 0x03, 0x00, 0x20, 0xdc
2020-12-13 19:33:07.318 Detail, contrlr, Queuing (Command) FUNC_ID_ZW_GET_CONTROLLER_CAPABILITIES: 0x01, 0x03, 0x00, 0x05, 0xf9
2020-12-13 19:33:07.318 Detail, contrlr, Queuing (Command) FUNC_ID_SERIAL_API_GET_CAPABILITIES: 0x01, 0x03, 0x00, 0x07, 0xfb
2020-12-13 19:33:07.318 Detail, contrlr, Queuing (Command) FUNC_ID_ZW_GET_SUC_NODE_ID: 0x01, 0x03, 0x00, 0x56, 0xaa
2020-12-13 19:33:07.318 Detail,
2020-12-13 19:33:07.318 Info, contrlr, Sending (Command) message (Callback ID=0x00, Expected Reply=0x15) - FUNC_ID_ZW_GET_VERSION: 0x01, 0x03, 0x00, 0x15, 0xe9
2020-12-13 19:33:07.318 Detail, contrlr, Notification: DriverFailed