Version-Release number of selected component:
cinnamon-5.0.7-1.fc34

Additional info:
reporter:       libreport-2.15.2
cgroup:         0::/user.slice/user-1001.slice/user/app.slice/app-glib-cinnamon\x2dsettings\x2dthemes-14359.scope
cmdline:        cinnamon-settings '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' ''
crash_function: __call__
exception_type: gi.repository.GLib.GError
executable:     /usr/share/cinnamon/cinnamon-settings/cinnamon-settings.py
interpreter:    cinnamon-5.0.7-1.fc34.x86_64
kernel:         5.15.10-100.fc34.x86_64
runlevel:       N 5
type:           Python3
uid:            1001

Truncated backtrace:
Gio.py:349:__call__:gi.repository.GLib.GError: g-io-error-quark: GDBus.Error:org.gnome.gjs.JSError.TypeError: type is undefined (36)

Traceback (most recent call last):
  File "/usr/share/cinnamon/cinnamon-settings/bin/Spices.py", line 695, in _install_finished
    self.send_proxy_signal('ReloadXlet', '(ss)', uuid, self.collection_type.upper())
  File "/usr/share/cinnamon/cinnamon-settings/bin/Spices.py", line 249, in send_proxy_signal
    getattr(self._proxy, command)(*args)
  File "/usr/lib/python3.9/site-packages/gi/overrides/Gio.py", line 349, in __call__
    result = self.dbus_proxy.call_sync(self.method_name, arg_variant,
gi.repository.GLib.GError: g-io-error-quark: GDBus.Error:org.gnome.gjs.JSError.TypeError: type is undefined (36)

Local variables in innermost frame:
self: <gi.overrides.Gio._DBusProxyMethodCall object at 0x7fc4acf05ac0>
args: ('Adapta-Nokto', 'THEME')
kwargs: {}
signature: '(ss)'
arg_variant: GLib.Variant('(ss)', ('Adapta-Nokto', 'THEME'))