No calendar in thunderbird 60.6.1

Hi,

My thunderbird was updated to 60.6.1, and there is no calendar (did not appear in the right hand side, and in the View menu it is disabled).

According to https://developer.mozilla.org/en-US/docs/Mozilla/Calendar/Calendar_Versions lightning version 6.2.6.1 should be installed for thunderbird 60.6.1, checked, I have that lightning version.

Also my "Exchange Calendar" version is the latest available v5.0.0-alpha3 (https://github.com/ExchangeCalendar/exchangecalendar/releases). This worked so far for Office 365 (can't tell my previous thunderbird version though).

I tried to start thunderbird from terminal, then I saw some messages about lightning, please see below (why cannot I attach logs?).

I tried to downgrade thunderbird to 60.5.3, but then I could not download the compatible Lightning addon 6.2.5.3, just found 6.2.5 (https://addons.thunderbird.net/en-US/thunderbird/addon/lightning/versions/), did not work.

Back to thunderbird 60.6.1 (and lightning 6.2.6.1) I tried the "addon reset ceremony" (https://support.mozilla.org/en-US/kb/calendar-updates-issues-thunderbird) 2 times to no avail.

I use Manjaro Linux (based on Arch Linux) and thunderbird was installed by distro package + installed the addons manually.

avangel@manjaro:~$ thunderbird [calBackendLoader] Using Thunderbird's builtin libical backend

(thunderbird:10324): Gtk-WARNING **: 10:41:18.262: Theme parsing error: <data>:1:34: Expected ')' in color definition

(thunderbird:10324): Gtk-WARNING **: 10:41:18.262: Theme parsing error: <data>:1:77: Expected ')' in color definition EwsTagging(exception) 2 :TypeError: nounDef is undefined -- Exception object --

-- Stack Trace -- gloda_ns_newQuery@resource:///modules/gloda/gloda.js:1880:5 ContactIdentityCompleter@jar:file:///usr/lib/thunderbird/omni.ja!/components/glautocomp.js:176:22 nsAutoCompleteGloda@jar:file:///usr/lib/thunderbird/omni.ja!/components/glautocomp.js:491:26 createInstance@resource://gre/modules/XPCOMUtils.jsm:511:19 glodaSearch_XBL_Constructor@chrome://messenger/content/search.xml:71:13 JavaScript error: resource:///modules/gloda/gloda.js, line 1706: TypeError: aAttrDef.objectNounDef is undefined progress_panel console.warn: Lightning: No unique email address for lookup! console.warn: Lightning: No unique email address for lookup! console.warn: Lightning: Parsing failed for parts of the item (while this is considered to be a minor issue, we continue processing the item): BEGIN:VCALENDAR METHOD:REPLY PRODID:Microsoft Exchange Server 2010 VERSION:2.0 BEGIN:VTIMEZONE TZID:Central Europe Standard Time BEGIN:STANDARD DTSTART:16010101T030000 TZOFFSETFROM:+0200 TZOFFSETTO:+0100 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10 END:STANDARD BEGIN:DAYLIGHT DTSTART:16010101T020000 TZOFFSETFROM:+0100 TZOFFSETTO:+0200 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3 END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT ATTENDEE;PARTSTAT=ACCEPTED;CN="<my name etc deleted>":MAILT

O:<my email deleted>

COMMENT;LANGUAGE=en-US:\n UID:040000008200E00074C5B7101A82E00800000000107ADFAEA2B4D40100000000000000

0010000000B216F4EC0E59B44393B80E0802A275EF

SUMMARY;LANGUAGE=en-US:Accepted: <meeting subject deleted> DTSTART;TZID=Central Europe Standard Time:20190325T130000 DTEND;TZID=Central Europe Standard Time:20190327T193000 CLASS:PUBLIC PRIORITY:5 DTSTAMP:20190319T131026Z TRANSP:OPAQUE STATUS:CONFIRMED SEQUENCE:0 X-LIC-ERROR;X-LIC-ERRORTYPE=VALUE-PARSE-ERROR:No value for LOCATION proper

ty. Removing entire property:

X-MICROSOFT-CDO-APPT-SEQUENCE:0 X-MICROSOFT-CDO-OWNERAPPTID:1372796899 X-MICROSOFT-CDO-BUSYSTATUS:BUSY X-MICROSOFT-CDO-INTENDEDSTATUS:BUSY X-MICROSOFT-CDO-ALLDAYEVENT:FALSE X-MICROSOFT-CDO-IMPORTANCE:1 X-MICROSOFT-CDO-INSTTYPE:0 X-MICROSOFT-DONOTFORWARDMEETING:FALSE X-MICROSOFT-DISALLOW-COUNTER:FALSE END:VEVENT END:VCALENDAR

and so on ...