[Grammar] please make correction in my sentence.

[shibli.aftab]

If you are talking about fast version 2.0, then i am already using it, that too has the same problem of not sending message.
I had downloaded fast version 2.0 from aptoide market store.
Any correction in the above sentence?
Thanks

 

[RonBee]

Use a period instead of a comma in the first sentence.

 

[shibli.aftab]

How could I use period because sentence is not complete?