No me carga la lista de contactos

Hola tengo un problema cuando abro el programa spark no le carga la lista de los contactos pero queda ejecutado y si le ingresan los mensajes de los otros usuarios, ya lo reinstale y le borre todo si alguien me puede ayudar gracias.

Hello I have a problem when I open the program spark does not load the list of contacts but it is executed and if you enter the messages of other users, I reinstall it and erase everything if someone can help me thanks.

If you are using older version of Spark, upgrade to 2.8.3.

You can wipe your Spark profile and start with a fresh one. Spark profile is here

C:\Users\username\AppData\Roaming\Spark

If you need your history, copy this folder:

C:\Users\username\AppData\Roaming\Spark\user\username@servername\transcripts

And copy it back after you start with a fresh profile.

If you use multi monitor setup, you might be affected by this Spark issue after Windows 7 update KB4034664