Viber больше не загружается после обновления до 6.5.5

Использование Ubuntu 16.04 со всеми обновлениями. Viber перестал загружаться после обновления до последней версии 6.5.5. Проблема осталась после чистой переустановки Ubuntu.

Ниже приведен вывод /opt/viber/Viber

    /opt/viber/Viber
QSqlDatabasePrivate::removeDatabase: connection 'ConfigureDBConnection' is still in use, all queries will cease to work.
Qt WebEngine ICU data not found at /opt/viber/resources. Trying parent directory...
Qt WebEngine resources not found at /opt/viber/resources. Trying parent directory...
Qt WebEngine ICU data not found at /opt/viber/resources. Trying parent directory...
Qt WebEngine resources not found at /opt/viber/resources. Trying parent directory...
QXcbConnection: XCB error: 3 (BadWindow), sequence: 508, resource id: 54525979, major code: 2 (ChangeWindowAttributes), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 509, resource id: 54525979, major code: 18 (ChangeProperty), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 510, resource id: 54525979, major code: 18 (ChangeProperty), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 511, resource id: 54525979, major code: 18 (ChangeProperty), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 513, resource id: 54525979, major code: 18 (ChangeProperty), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 514, resource id: 54525979, major code: 18 (ChangeProperty), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 515, resource id: 54525979, major code: 18 (ChangeProperty), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 519, resource id: 54525979, major code: 18 (ChangeProperty), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 523, resource id: 54525979, major code: 2 (ChangeWindowAttributes), minor code: 0
    ................

Не могу заставить его работать, не могу найти предыдущую версию, которая работала.

Помощь будет высоко оценена!