Не получается запустить приложение на PyQt5

Пытаюсь запустить приложение, но ничего не выходит. Терминал выдаёт:

qt.qpa.xcb: could not connect to display 
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.

Aborted

Также я запускал свое приложение с переменной окружения QT_DEBUG_PLUGINS=1, чтобы увидеть, что может пойти не так при загрузке плагина. Терминал выдал следующее:

QFactoryLoader::QFactoryLoader() checking directory path "/home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms" ...
QFactoryLoader::QFactoryLoader() looking at "/home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqeglfs.so"
Found metadata in lib /home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqeglfs.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "eglfs"
        ]
    },
    "archreq": 0,
    "className": "QEglFSIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("eglfs")
QFactoryLoader::QFactoryLoader() looking at "/home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqlinuxfb.so"
Found metadata in lib /home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqlinuxfb.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "linuxfb"
        ]
    },
    "archreq": 0,
    "className": "QLinuxFbIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("linuxfb")
QFactoryLoader::QFactoryLoader() looking at "/home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqminimal.so"
Found metadata in lib /home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqminimal.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "minimal"
        ]
    },
    "archreq": 0,
    "className": "QMinimalIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("minimal")
QFactoryLoader::QFactoryLoader() looking at "/home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqminimalegl.so"
Found metadata in lib /home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqminimalegl.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "minimalegl"
        ]
    },
    "archreq": 0,
    "className": "QMinimalEglIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("minimalegl")
QFactoryLoader::QFactoryLoader() looking at "/home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqoffscreen.so"
Found metadata in lib /home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqoffscreen.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "offscreen"
        ]
    },
    "archreq": 0,
    "className": "QOffscreenIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("offscreen")
QFactoryLoader::QFactoryLoader() looking at "/home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqvnc.so"
Found metadata in lib /home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqvnc.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "vnc"
        ]
    },
    "archreq": 0,
    "className": "QVncIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("vnc")
QFactoryLoader::QFactoryLoader() looking at "/home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqwayland-egl.so"
Found metadata in lib /home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqwayland-egl.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "wayland-egl"
        ]
    },
    "archreq": 0,
    "className": "QWaylandEglPlatformIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("wayland-egl")
QFactoryLoader::QFactoryLoader() looking at "/home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqwayland-generic.so"
Found metadata in lib /home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqwayland-generic.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "wayland"
        ]
    },
    "archreq": 0,
    "className": "QWaylandIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("wayland")
QFactoryLoader::QFactoryLoader() looking at "/home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqwayland-xcomposite-egl.so"
Found metadata in lib /home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqwayland-xcomposite-egl.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "wayland-xcomposite-egl"
        ]
    },
    "archreq": 0,
    "className": "QWaylandXCompositeEglPlatformIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("wayland-xcomposite-egl")
QFactoryLoader::QFactoryLoader() looking at "/home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqwayland-xcomposite-glx.so"
Found metadata in lib /home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqwayland-xcomposite-glx.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "wayland-xcomposite-glx"
        ]
    },
    "archreq": 0,
    "className": "QWaylandXCompositeGlxPlatformIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("wayland-xcomposite-glx")
QFactoryLoader::QFactoryLoader() looking at "/home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqwebgl.so"
Found metadata in lib /home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqwebgl.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "webgl"
        ]
    },
    "archreq": 0,
    "className": "QWebGLIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("webgl")
QFactoryLoader::QFactoryLoader() looking at "/home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqxcb.so"
Found metadata in lib /home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqxcb.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "xcb"
        ]
    },
    "archreq": 0,
    "className": "QXcbIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("xcb")
QFactoryLoader::QFactoryLoader() checking directory path "/usr/bin/platforms" ...
loaded library "/home/em0ji/.cache/pypoetry/virtualenvs/loki_browser-Lx0dDKdt-py3.10/lib/python3.10/site-packages/PyQt5/Qt5/plugins/platforms/libqxcb.so"
qt.qpa.xcb: could not connect to display
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.

Aborted

Помогите решить проблему.