(Ubuntu)Everything disappear all of a sudden like All the apps from dock, open apps icon, setting and everything

This marks the third occurrence today where all options on my laptop have vanished. While using Chrome, I was unexpectedly redirected to the home screen, which appeared empty. I am unable to access any options or applications. Each time, I am compelled to restart my laptop by pressing and holding the power button. Following this, my laptop does not power on easily; it initially displays an error message and becomes unresponsive. I believe the message indicated that a ‘Docker file couldn’t open.’ Once again, I had to press a long button to turn the laptop on. The laptop is new and I’ve been using Ubuntu for more than 1 month

Sounds like some software you have recently installed has messed up.

Might just be quicker to backup what you need and do a quick half an hour reinstall.

It’s any tool or software I can run and it will restart all the microservices or something like that. The laptop is working fine right now. It happens sometimes. Specially can’t run heavy or time-consuming tasks. Every time I try to make bootable pen-drive, that thing happen and I have to restart the laptop again.

I have created the boot pen drive but it’s also not picking the pen drive in the boot menu (after clicking f9 while starting). But it’s visible when I am on my laptop (myComp). I have the image in the file manager and also I have a bootable pendrive. Can I reinstall the OS without going in boot. Like simply click on install or something? I don’t have good knowledge about this so please let me know if you have any idea!

How have you written the iso to the pen drive?

I use gnome-disks and choose the restore image option.

Remember to check that the sha256 value of the iso matches to the published value

sha256sum thenameofthe.iso

I can’t do it with laptop now so I downloaded the ISO on mobile and used a simple application. don’t know how it writes. I will try to boot the pen drive again with some other laptop and then try(I’m using SSD with an external SSD connector).