glibtop error messages flood ~./xsession-errors

I’m using Debian 9.11 with Cinnamon 3.2.7. The log file at ~/.xsession-errors is flooded pretty much every second with this, repeated over and over: glibtop(c=1250): [WARNING] Failed to open “/sys/class/net/ttyUSB0/statistics/rx_packets”: No such file or directory glibtop(c=1250): [WARNING] Failed to open “/sys/class/net/ttyUSB0/statistics/tx_packets”: No such file or directory glibtop(c=1250): [WARNING] Failed to open “/sys/class/net/ttyUSB0/statistics/rx_bytes”: No such file…

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Apt won’t install due to linux image

Whenever I try to run any apt install or apt-get install, I get the following error message: Removing linux-image-4.4.0-148-generic (4.4.0-148.174~14.04.1) … W: Last kernel image has been removed, so removing the default symlinks /etc/kernel/postrm.d/initramfs-tools: update-initramfs: Removing /boot/initrd.img-4.4.0-148-generic /etc/kernel/postrm.d/zz-update-grub: /usr/sbin/grub-probe: error: Failed to get the canonical path of `rootfs’. run-parts: /etc/kernel/postrm.d/zz-update-grub exited with return code 1…

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