Does not start on Volla Phone X due to "library "libpq_cust.so" not found"

I've rsynced all home from BQ Aquaris E5 into my new Volla Phone X, installed (or it was already there?) Notes, launched it, but loader just keeps "spinning". User interface never appears.

Tailing logs shows this:

==> unity8.log <==
[2022-01-14:08:35:06.749] ApplicationManager::onProcessStopped reports stop of appId= "com.ubuntu.reminders_reminders" which AppMan is not managing, ignoring the event
[2022-01-14:08:35:08.529] toplevelwindowmodel: setRootFocus(false), surfaceManagerBusy is false
[2022-01-14:08:35:11.261] qtmir.mir: SessionAuthorizer::connection_is_allowed - this= SessionAuthorizer(0x72e015fa10) pid= 20283
[2022-01-14:08:35:11.747] qtmir.applications: Application["com.ubuntu.reminders_reminders"]::Application()
[2022-01-14:08:35:11.748] toplevelwindowmodel: prependPlaceholder(com.ubuntu.reminders_reminders)
[2022-01-14:08:35:11.944] toplevelwindowmodel: setRootFocus(true), surfaceManagerBusy is false
[2022-01-14:08:35:11.954] toplevelwindowmodel: setFocusedWindow(Window[0x92d6290, id=65, null])
[2022-01-14:08:35:11.954] toplevelwindowmodel: prependSurfaceHelper after (index=0,appId=com.ubuntu.reminders_reminders,surface=0x0,id=65)
[2022-01-14:08:35:11.963] qtmir.sessions: Wakelock acquired "102"
[2022-01-14:08:35:11.979] qtmir.mir: SessionAuthorizer::configure_input_is_allowed - this= SessionAuthorizer(0x72e015fa10) pid= 20283
[2022-01-14:08:35:11.980] qtmir.mir: SessionAuthorizer::set_base_input_configuration_is_allowed - this= SessionAuthorizer(0x72e015fa10) pid= 20283
[2022-01-14:08:35:11.980] qtmir.mir: SessionAuthorizer::configure_display_is_allowed - this= SessionAuthorizer(0x72e015fa10) pid= 20283
[2022-01-14:08:35:11.981] qtmir.mir: SessionAuthorizer::set_base_display_configuration_is_allowed - this= SessionAuthorizer(0x72e015fa10) pid= 20283
[2022-01-14:08:35:11.981] qtmir.mir: SessionAuthorizer::screencast_is_allowed - this= SessionAuthorizer(0x72e015fa10) pid= 20283
[2022-01-14:08:35:11.981] qtmir.mir: SessionAuthorizer::prompt_session_is_allowed - this= SessionAuthorizer(0x72e015fa10) pid= 20283
[2022-01-14:08:35:11.999] qtmir.sessions: TaskController::onSessionStarting - sessionName=reminders
[2022-01-14:08:35:12.000] qtmir.applications: Application["com.ubuntu.reminders_reminders"]::addSession(session=qtmir::Session(0x9cff5d0))

==> application-click-com.ubuntu.reminders_reminders_0.17.3.log <==
library "libpq_cust.so" not found