Yep, that's the one, it dropped offline:
Jun 24 04:50:09 Tower kernel: nvme nvme0: I/O 170 QID 2 timeout, aborting
Jun 24 04:50:09 Tower kernel: nvme nvme0: I/O 171 QID 2 timeout, aborting
Jun 24 04:50:09 Tower kernel: nvme nvme0: I/O 172 QID 2 timeout, aborting
Jun 24 04:50:09 Tower kernel: nvme nvme0: I/O 173 QID 2 timeout, aborting
Jun 24 04:50:09 Tower kernel: nvme nvme0: I/O 174 QID 2 timeout, aborting
Jun 24 04:50:37 Tower kernel: nvme nvme0: I/O 12 QID 0 timeout, reset controller
Jun 24 04:50:39 Tower kernel: nvme nvme0: I/O 170 QID 2 timeout, reset controller
Jun 24 04:53:40 Tower kernel: nvme nvme0: Device not ready; aborting reset, CSTS=0x1
The below can sometimes help, if not try a different PCIe/m.2 slot if available, or a different model device.
Some NVMe devices have issues with power states on Linux, try this, on the main GUI page click on flash, scroll down to "Syslinux Configuration", make sure it's set to "menu view" (on the top right) and add this to your default boot option, after "append initrd=/bzroot"
nvme_core.default_ps_max_latency_us=0
e.g.:
append initrd=/bzroot nvme_core.default_ps_max_latency_us=0
Reboot and see if it makes a difference.