Planify crashes at launch

[rolnico]

Describe the bug
I just installed Planify via snap (I can't use the other package manager on this computer) and, when I try to run it, it crashes and I get a message "Planify does not respond".

To Reproduce
Steps to reproduce the behavior:

1. Install from scratch via snap
2. Try to run it

Expected behavior
It should launch

Screenshots
When I run it manually via the terminal, I get the following messages:

$ snap run planify &
** (io.github.alainm23.planify:60789): CRITICAL **: 17:38:51.245: objects_item_get_completed: assertion 'self != NULL' failed

(io.github.alainm23.planify:60789): GLib-WARNING **: 17:38:51.475: getpwuid_r(): failed due to unknown user id (17******68)

** (io.github.alainm23.planify:60789): CRITICAL **: 17:38:51.476: Settings.vala:95: GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: An AppArmor policy prevents this sender from sending this message to this recipient; type="method_call", sender=":1.561" (uid=17******68 pid=60789 comm="/snap/planify/149/usr/bin/io.github.alainm23.plani" label="snap.planify.planify (enforce)") interface="org.freedesktop.Accounts" member="FindUserByName" error name="(unset)" requested_reply="0" destination="org.freedesktop.Accounts" (uid=0 pid=1491 comm="/usr/lib/accountsservice/accounts-daemon " label="unconfined")

(io.github.alainm23.planify:60789): GLib-GIO-CRITICAL **: 17:38:51.476: g_dbus_connection_call_internal: assertion 'object_path != NULL && g_variant_is_object_path (object_path)' failed

Desktop (please complete the following information):

• OS or DE: Ubuntu 20.04
• Version [e.g. 0.1.2] 149 on snap (I just installed it so probably the last?)

Additional context
This computer is behind a proxy so maybe something has to be configured?
Is it possible to run Planify only locally without it trying to sync to anything?