Thunderbird does not start correctly

[Andrés Alcarraz]

Right after launch and entered the password, windows with this content appears and I can't do anything.

Error de análisis XML: entidad indefinida
Ubicación: chrome://messenger/content/messenger.xhtml
Línea 905, columna 3:
  <key id="openLightningKey"
--^

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: thunderbird 1:78.3.2+build1-0ubuntu1
ProcVersionSignature: Ubuntu 5.8.0-25.26-generic 5.8.14
Uname: Linux 5.8.0-25-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.20.11-0ubuntu50
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: alcarraz 43055 F.... pulseaudio
BuildID: 20201006011220
CasperMD5CheckResult: skip
Channel: Unavailable
CurrentDesktop: ubuntu:GNOME
Date: Wed Oct 28 05:53:14 2020
DefaultProfileIncompatibleExtensions:
 English (GB) Language Pack - <email address hidden>
 Español (España) Language Pack - <email address hidden>
 Español (AR) Language Pack - <email address hidden>
 Thunderbird (default) - {972ce4c6-7e08-4474-a285-3208198ce6fd}
DefaultProfilePrefErrors: Unexpected character ',' before close parenthesis @ /usr/lib/thunderbird/omni.ja:greprefs.js:732
DefaultProfilePrefSources: prefs.js
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2018-04-29 (912 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
MostRecentCrashID: bp-bd885e8d-ef58-411e-9444-dda980201028
Profile1Extensions: extensions.sqlite corrupt or missing
Profile1IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
Profile1Locales: extensions.sqlite corrupt or missing
Profile1PrefErrors: Unexpected character ',' before close parenthesis @ /usr/lib/thunderbird/omni.ja:greprefs.js:732
Profile1PrefSources: prefs.js
Profile1Prefs:
 extensions.lastAppVersion: "60.2.1" (prefs.js)
 network.cookie.prefsMigrated: true (prefs.js)
 places.history.expiration.transient_current_max_pages: 104858 (prefs.js)
Profile1Themes: extensions.sqlite corrupt or missing
Profiles:
 Profile1 - LastVersion=60.2.1/20181010142617 (Out of date)
 Profile0 (Default) - LastVersion=78.3.2/20201006011220
RunningIncompatibleAddons: True
SourcePackage: thunderbird
UpgradeStatus: Upgraded to groovy on 2020-10-22 (5 days ago)
dmi.bios.date: 07/18/2018
dmi.bios.release: 1.25
dmi.bios.vendor: LENOVO
dmi.bios.version: 5JCN25WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo Y520-15IKBA
dmi.ec.firmware.release: 1.25
dmi.modalias: dmi:bvnLENOVO:bvr5JCN25WW:bd07/18/2018:br1.25:efr1.25:svnLENOVO:pn80WY:pvrLenovoY520-15IKBA:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrLenovoY520-15IKBA:
dmi.product.family: Y520-15IKBA
dmi.product.name: 80WY
dmi.product.sku: LENOVO_MT_80WY_BU_idea_FM_Y520-15IKBA
dmi.product.version: Lenovo Y520-15IKBA
dmi.sys.vendor: LENOVO