I could not figure out the exact reason. However, the system got stuck today and I had to do a cold reboot. After the reboot, the first thing I tried is to run the command "sudo journalctl -xb -p err" and below are the error messages from the journal entries.
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`-- Logs begin at Tue 2020-04-28 07:50:21 CDT, end at Sun 2020-07-19 04:57:11 CDT. --
Jul 18 23:56:24 solus kernel: ACPI BIOS Error (bug): Failure creating named object [_SB.PCI0.OSC.CAPB], AE_ALREADY_EXISTS (20200110/dsfield-181)
Jul 18 23:56:24 solus kernel: ACPI Error: AE_ALREADY_EXISTS, CreateBufferField failure (20200110/dswload2-477)
Jul 18 23:56:24 solus kernel: ACPI Error: Aborting method _SB.PCI0.OSC due to previous error (AE_ALREADY_EXISTS) (20200110/psparse-529)
Jul 18 23:56:24 solus kernel: platform INT0800:00: failed to claim resource 0: [mem 0xff800000-0xffffffff]
Jul 18 23:56:24 solus kernel: acpi INT0800:00: platform device creation failed: -16
Jul 19 04:56:32 test-pc systemd-udevd[467]: /usr/lib64/udev/rules.d/51-android.rules:690 Unknown group 'adbusers', ignoring
Jul 19 04:56:41 test-pc systemd-tmpfiles[548]: Failed to copy files to /etc/issue: No such file or directory
Jul 19 04:56:47 test-pc systemd[1]: Failed to start Load AppArmor profiles.
-- Subject: A start job for unit aa-lsm-hook.service has failed
-- Defined-By: systemd
-- A start job for unit aa-lsm-hook.service has finished with a failure.
-- The job identifier is 742 and the job result is failed.
Jul 19 04:56:58 test-pc lightdm[834]: gkr-pam: unable to locate daemon control file
Jul 19 04:56:59 test-pc lightdm[834]: gkr-pam: unable to locate daemon control file
Jul 19 04:57:00 test-pc mate-session[883]: GLib-GObject-CRITICAL: object GsmAutostartApp 0x50f5f0 finalized while still in-construction
Jul 19 04:57:00 test-pc mate-session[883]: GLib-GObject-CRITICAL: Custom constructor for class GsmAutostartApp returned NULL (which is inval>
Jul 19 04:57:00 test-pc mate-session[883]: GLib-GObject-CRITICAL: object GsmAutostartApp 0x50f470 finalized while still in-construction
Jul 19 04:57:00 test-pc mate-session[883]: GLib-GObject-CRITICAL: Custom constructor for class GsmAutostartApp returned NULL (which is inval>
Jul 19 04:57:00 test-pc mate-session[883]: GLib-GObject-CRITICAL: object GsmAutostartApp 0x50f470 finalized while still in-construction
Jul 19 04:57:00 test-pc mate-session[883]: GLib-GObject-CRITICAL: Custom constructor for class GsmAutostartApp returned NULL (which is inval>
Jul 19 04:57:00 test-pc mate-session[883]: GLib-GObject-CRITICAL: object GsmAutostartApp 0x7f0fe40053a0 finalized while still in-construction
Jul 19 04:57:00 test-pc mate-session[883]: GLib-GObject-CRITICAL: Custom constructor for class GsmAutostartApp returned NULL (which is inval>
Jul 19 04:57:00 test-pc mate-session[883]: GLib-GObject-CRITICAL: object GsmAutostartApp 0x7f0fe4005460 finalized while still in-construction
Jul 19 04:57:00 test-pc mate-session[883]: GLib-GObject-CRITICAL: Custom constructor for class GsmAutostartApp returned NULL (which is inval>
Jul 19 04:57:00 test-pc mate-session[883]: GLib-GObject-CRITICAL: object GsmAutostartApp 0x7f0fe40055e0 finalized while still in-construction
Jul 19 04:57:00 test-pc mate-session[883]: GLib-GObject-CRITICAL: Custom constructor for class GsmAutostartApp returned NULL (which is inval>
Jul 19 04:57:00 test-pc mate-session[883]: GLib-GObject-CRITICAL: object GsmAutostartApp 0x7f0fe40055e0 finalized while still in-construction
Jul 19 04:57:00 test-pc mate-session[883]: GLib-GObject-CRITICAL: Custom constructor for class GsmAutostartApp returned NULL (which is inval>
Jul 19 04:57:00 test-pc mate-session[883]: GLib-GObject-CRITICAL: object GsmAutostartApp 0x549220 finalized while still in-construction
Jul 19 04:57:00 test-pc mate-session[883]: GLib-GObject-CRITICAL: Custom constructor for class GsmAutostartApp returned NULL (which is inval>
Jul 19 04:57:01 test-pc mate-session[883]: GLib-GObject-CRITICAL: object GsmAutostartApp 0x5492e0 finalized while still in-construction
Jul 19 04:57:01 test-pc mate-session[883]: GLib-GObject-CRITICAL: Custom constructor for class GsmAutostartApp returned NULL (which is inval>
Jul 19 04:57:05 test-pc spice-vdagent[1094]: Cannot access vdagent virtio channel /dev/virtio-ports/com.redhat.spice.0
Jul 19 00:00:47 test-pc pulseaudio[1005]: [pulseaudio] bluez5-util.c: GetManagedObjects() failed: org.freedesktop.DBus.Error.NoReply: Did no>
`
Does any one have ideas on how to address this?