Linux fails on fatal IO error 2

$ idd Fritzing

gave:
linux-vdso.so.1 => (0x00007ffffeff9000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f3ab5f16000)
libgit2.so.23 => /home/jan/Stažené/fritzing-0.9.3b.linux.AMD64/lib/./libgit2.so.23 (0x00007f3ab5bf1000)
libQt5Svg.so.5 => /home/jan/Stažené/fritzing-0.9.3b.linux.AMD64/lib/./libQt5Svg.so.5 (0x00007f3ab599d000)
libQt5PrintSupport.so.5 => /home/jan/Stažené/fritzing-0.9.3b.linux.AMD64/lib/./libQt5PrintSupport.so.5 (0x00007f3ab5730000)
libQt5Widgets.so.5 => /home/jan/Stažené/fritzing-0.9.3b.linux.AMD64/lib/./libQt5Widgets.so.5 (0x00007f3ab4ebe000)
libQt5Gui.so.5 => /home/jan/Stažené/fritzing-0.9.3b.linux.AMD64/lib/./libQt5Gui.so.5 (0x00007f3ab46c5000)
libQt5Xml.so.5 => /home/jan/Stažené/fritzing-0.9.3b.linux.AMD64/lib/./libQt5Xml.so.5 (0x00007f3ab448a000)
libQt5Network.so.5 => /home/jan/Stažené/fritzing-0.9.3b.linux.AMD64/lib/./libQt5Network.so.5 (0x00007f3ab412b000)
libQt5Sql.so.5 => /home/jan/Stažené/fritzing-0.9.3b.linux.AMD64/lib/./libQt5Sql.so.5 (0x00007f3ab3ee7000)
libQt5SerialPort.so.5 => /home/jan/Stažené/fritzing-0.9.3b.linux.AMD64/lib/./libQt5SerialPort.so.5 (0x00007f3ab3cce000)
libQt5Core.so.5 => /home/jan/Stažené/fritzing-0.9.3b.linux.AMD64/lib/./libQt5Core.so.5 (0x00007f3ab35bc000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f3ab3232000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f3ab2f29000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f3ab2d12000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f3ab294b000)
libssl.so.1.0.0 => /lib/x86_64-linux-gnu/libssl.so.1.0.0 (0x00007f3ab26e2000)
libcrypto.so.1.0.0 => /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 (0x00007f3ab229e000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f3ab2094000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f3ab1e76000)
libGL.so.1 => /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 (0x00007f3ab1c02000)
libgobject-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 (0x00007f3ab19af000)
libgthread-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgthread-2.0.so.0 (0x00007f3ab17ad000)
libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f3ab149a000)
libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007f3ab1286000)
libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007f3ab0f4d000)
libicui18n.so.56 => /home/jan/Stažené/fritzing-0.9.3b.linux.AMD64/lib/./libicui18n.so.56 (0x00007f3ab0ab3000)
libicuuc.so.56 => /home/jan/Stažené/fritzing-0.9.3b.linux.AMD64/lib/./libicuuc.so.56 (0x00007f3ab06fb000)
libicudata.so.56 => /home/jan/Stažené/fritzing-0.9.3b.linux.AMD64/lib/./libicudata.so.56 (0x00007f3aaed18000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f3aaeb12000)
/lib64/ld-linux-x86-64.so.2 (0x000055b7bcc6b000)
libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f3aae8e8000)
libxcb-dri3.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-dri3.so.0 (0x00007f3aae6e5000)
libxcb-present.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-present.so.0 (0x00007f3aae4e2000)
libxcb-sync.so.1 => /usr/lib/x86_64-linux-gnu/libxcb-sync.so.1 (0x00007f3aae2db000)
libxshmfence.so.1 => /usr/lib/x86_64-linux-gnu/libxshmfence.so.1 (0x00007f3aae0d6000)
libglapi.so.0 => /usr/lib/x86_64-linux-gnu/libglapi.so.0 (0x00007f3aadea7000)
libXdamage.so.1 => /usr/lib/x86_64-linux-gnu/libXdamage.so.1 (0x00007f3aadca4000)
libXfixes.so.3 => /usr/lib/x86_64-linux-gnu/libXfixes.so.3 (0x00007f3aada9e000)
libX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007f3aad89c000)
libxcb-glx.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-glx.so.0 (0x00007f3aad683000)
libxcb-dri2.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-dri2.so.0 (0x00007f3aad47c000)
libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f3aad25a000)
libXxf86vm.so.1 => /usr/lib/x86_64-linux-gnu/libXxf86vm.so.1 (0x00007f3aad054000)
libdrm.so.2 => /usr/lib/x86_64-linux-gnu/libdrm.so.2 (0x00007f3aace45000)
libffi.so.6 => /usr/lib/x86_64-linux-gnu/libffi.so.6 (0x00007f3aacc3d000)
libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f3aac9ca000)
libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007f3aac7c4000)
libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f3aac5be000)