This morning while configuring the settings for Weather applet, the desktop got hanged and I chose force quit the desktop settings - the result was that I lost panel and everything. By using Tilix I rebooted machine and thank god it was a good boot for me but the panel was messed up completely.
I configured a new panel and I like it that I had to reconsider the things in the panel but two problems -
- Bluetooth is working but not displayed in panel ( I need it, really I work with bluetooth )
- System Tray applet is not showing the things up.