Ubuntu 14.04 not loading Vivaldi

[devviv]

Hi all I am hoping that there is an easy solution as to why Vivaldi will not launch even though it was installed through the Software Centre and I have an icon in the Dash area. Version is vivaldi-stable_1.0.435.42-1_i386.deb Installed Pepper-free, and have updated system. Chrome seems to run fine, but is warning me that it will not receive updates because this Linux system is no longer supported. (Not sure why but presume because I have a 32 bit version). Thanks in advance

[The_Solutor]

Start trying to launch vivaldi from a terminal to see any relevant error

[devviv]

The error message is

[0415/202601:ERROR:nss_util.cc(98)] Failed to create /home/myname/.pki/nssdb directory.

Does this give any clues?

Thanks
Also got next time
[5140:5181:0415/203113:ERROR:cache_util.cc(134)] Unable to move cache folder /home/myname/.config/vivaldi/ShaderCache/GPUCache to /home/myname/.config/vivaldi/ShaderCache/old_GPUCache_000
[5140:5181:0415/203113:ERROR:cache_creator.cc(129)] Unable to create cache
[5140:5181:0415/203113:ERROR:shader_disk_cache.cc(589)] Shader Cache Creation failed: -2
[5140:5140:0415/203113:ERROR:process_singleton_posix.cc(410)] readlink failed: Permission denied
[5140:5140:0415/203113:ERROR:process_singleton_posix.cc(246)] readlink(/home/myname/.config/vivaldi/SingletonLock) failed: Permission denied
[5140:5140:0415/203113:ERROR:process_singleton_posix.cc(246)] readlink(/home/myname/.config/vivaldi/SingletonLock) failed: Permission denied
[5140:5140:0415/203113:ERROR:process_singleton_posix.cc(270)] Failed to create /home/myname/.config/vivaldi/SingletonLock: Permission denied
[5140:5140:0415/203113:ERROR:process_singleton_posix.cc(410)] readlink failed: Permission denied
[5140:5140:0415/203113:ERROR:process_singleton_posix.cc(246)] readlink(/home/myname/.config/vivaldi/SingletonLock) failed: Permission denied
[5140:5140:0415/203113:ERROR:chrome_browser_main.cc(1358)] Failed to create a ProcessSingleton for your profile directory. This means that running multiple instances would start multiple browser processes rather than opening a new window in the existing process. Aborting now to avoid profile corruption.

[The_Solutor]

If that's a fresh install the faster way is to delete the profile folder

/home/your-name/.config/vivaldi

Otherwise you can try deleting any SingletonLock and SingletonSocket inside it.

[devviv]

The vivaldi folder was locked to root so change permissions and deleted it as suggested.
When I ran vivaldi in terminal I got the following:
[3773:3773:0416/112247:ERROR:logging.h(813)] Failed to call method: org.freedesktop.DBus.ObjectManager.GetManagedObjects: object_path= /: org.freedesktop.DBus.Error.UnknownMethod: Method "GetManagedObjects" with signature "" on interface "org.freedesktop.DBus.ObjectManager" doesn't exist

[3773:3773:0416/112247:ERROR:logging.h(813)] Failed to call method: org.freedesktop.DBus.ObjectManager.GetManagedObjects: object_path= /: org.freedesktop.DBus.Error.UnknownMethod: Method "GetManagedObjects" with signature "" on interface "org.freedesktop.DBus.ObjectManager" doesn't exist

BUT Vivaldi has started up ! Went through the set up & closed it. Icon in Dash still doesn't start it up. Any more thoughts?

Thanks