Your post was blank @FadiA8600 and there's not much to go on in the thread title.
If you want assistance from the Community Forum you need to explain/describe your issue clearly and in detail.
E.g:
When was it working ok last?
What happened in the meantime?
What exactly is/isn't working?
Connection to the 48 network - i.e. signal bars?
Incoming/outgoing calls?
Incoming/outgoing texts?
Mobile data?
Any error messages?
Etc.
If you need to contact 48 support then see the links in my signature below.
