I tried to upgrade to Ubuntu 19.04 through the software-update and it kinda worked well this time, except that it failed that a menu is not installed properly and issue with that and it'll start rollback to the old version.
I thought it's going to be okay and it'll rollback and nothing happened for an hour, so I restarted the system. Now I am in Ubuntu 19 and all the applications work fine but the problem is I can't access the dash menu (start menu).
Every time I try to open dash or press the window key, the desktop environment crashes and pushes me to the lock screen. I am not entirely sure what's missing here and don't know where to look up for the cause.
Let me know if you need me too look up for the logs somewhere and paste it here.