Thread 1 "qgis" hit Breakpoint 1, QgsOgrProvider::reloadData (this=
    0x5555597eeb60)
    at /home/webmaster/dev/cpp/QGIS/src/providers/ogr/qgsogrprovider.cpp:4532
4532        pushError( tr( "Cannot reopen datasource %1" ).arg( dataSourceUri() ) );
(gdb) where
#0  0x00007fffd8c7eee4 in QgsOgrProvider::reloadData() (this=0x5555597eeb60) at /home/webmaster/dev/cpp/QGIS/src/providers/ogr/qgsogrprovider.cpp:4532
#1  0x00007ffff58440ba in QgsVectorLayer::reload() (this=0x55555997aa70) at /home/webmaster/dev/cpp/QGIS/src/core/qgsvectorlayer.cpp:339
#2  0x00007ffff6aa7a73 in QgsMapCanvas::refreshAllLayers() (this=0x555556545300) at /home/webmaster/dev/cpp/QGIS/src/gui/qgsmapcanvas.cpp:2194
#3  0x00007ffff73aaa5d in QgisApp::refreshMapCanvas() (this=0x5555565c9500) at /home/webmaster/dev/cpp/QGIS/src/app/qgisapp.cpp:9401
#4  0x00007ffff73af182 in QgisApp::removeLayer() (this=0x5555565c9500) at /home/webmaster/dev/cpp/QGIS/src/app/qgisapp.cpp:10048
#5  0x00007ffff74419fe in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (QgisApp::*)()>::call(void (QgisApp::*)(), QgisApp*, void**)
    (f=(void (QgisApp::*)(QgisApp * const)) 0x7ffff73ae5e4 <QgisApp::removeLayer()>, o=0x5555565c9500, arg=0x7fffffffc770)
    at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:152