When I tap on the paper clip icon to attempt to send a photo, vgmms immediately crashes. Here's the backtrace:

thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: ()', /home/mobian/.cargo/registry/src/github.com-1ecc6299db9ec823/gdk-0.13.1/src/event.rs:419:21
stack backtrace:
   0: backtrace::backtrace::libunwind::trace
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
   1: backtrace::backtrace::trace_unsynchronized
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
   2: std::sys_common::backtrace::_print_fmt
             at src/libstd/sys_common/backtrace.rs:78
   3: <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt
             at src/libstd/sys_common/backtrace.rs:59
   4: core::fmt::write
             at src/libcore/fmt/mod.rs:1076
   5: std::io::Write::write_fmt
             at src/libstd/io/mod.rs:1537
   6: std::sys_common::backtrace::_print
             at src/libstd/sys_common/backtrace.rs:62
   7: std::sys_common::backtrace::print
             at src/libstd/sys_common/backtrace.rs:49
   8: std::panicking::default_hook::{{closure}}
             at src/libstd/panicking.rs:198
   9: std::panicking::default_hook
             at src/libstd/panicking.rs:218
  10: std::panicking::rust_panic_with_hook
             at src/libstd/panicking.rs:486
  11: rust_begin_unwind
             at src/libstd/panicking.rs:388
  12: core::panicking::panic_fmt
             at src/libcore/panicking.rs:101
  13: core::option::expect_none_failed
             at src/libcore/option.rs:1272
  14: <O as gtk::auto::entry::EntryExt>::connect_icon_press::icon_press_trampoline
  15: g_closure_invoke
  16: <unknown>
  17: g_signal_emit_valist
  18: g_signal_emit
  19: <unknown>
  20: <unknown>
  21: <unknown>
  22: <unknown>
  23: g_signal_emit_valist
  24: g_signal_emit
  25: <unknown>
  26: <unknown>
  27: gtk_main_do_event
  28: <unknown>
  29: <unknown>
  30: g_main_context_dispatch
  31: <unknown>
  32: g_main_context_iteration
  33: g_application_run
  34: <O as gio::application::ApplicationExtManual>::run
  35: vgmms::main
  36: std::rt::lang_start::{{closure}}
  37: std::rt::lang_start_internal::{{closure}}
             at src/libstd/rt.rs:52
  38: std::panicking::try::do_call
             at src/libstd/panicking.rs:297
  39: std::panicking::try
             at src/libstd/panicking.rs:274
  40: std::panic::catch_unwind
             at src/libstd/panic.rs:394
  41: std::rt::lang_start_internal
             at src/libstd/rt.rs:51
  42: main
  43: __libc_start_main
  44: <unknown>
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.