ayatana-indicator-datetime-service crashed with SIGABRT in g_assertion_message_expr()

Crashed after adding GMail account with calendar to Evolution.

ProblemType: Crash
DistroRelease: Ubuntu 21.04
Package: ayatana-indicator-datetime 0.8.1-2ubuntu1
ProcVersionSignature: Ubuntu 5.11.0-11.12-generic 5.11.0
Uname: Linux 5.11.0-11-generic x86_64
ApportVersion: 2.20.11-0ubuntu60
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: MATE
Date: Mon Mar 22 12:09:57 2021
ExecutablePath: /usr/libexec/ayatana-indicator-datetime/ayatana-indicator-datetime-service
ProcCmdline: /usr/libexec/ayatana-indicator-datetime/ayatana-indicator-datetime-service
ProcEnviron:
 PATH=(custom, no username)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
Signal: 6
SourcePackage: ayatana-indicator-datetime
StacktraceTop:
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_assertion_message_expr () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ayatana::indicator::datetime::DateTime::format(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const ()
 ayatana::indicator::datetime::EdsEngine::Impl::get_appointment(_ECalClient*, std::shared_ptr<_GCancellable>&, _ECalComponent*, _GTimeZone*) ()
 ayatana::indicator::datetime::EdsEngine::Impl::add_event_to_subtask(_ECalComponent*, ayatana::indicator::datetime::EdsEngine::Impl::ClientSubtask*, _GTimeZone*) ()
Title: ayatana-indicator-datetime-service crashed with SIGABRT in g_assertion_message_expr()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sudo
mtime.conffile..etc.apport.crashdb.conf: 2021-03-22T12:45:21.592901
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