Laptop hangs at boot time

Hi everyone I installed Manjaro with the KDE desktop earlier this year on my HP laptop I installed it with encryption. I haven’t had any problems up until now. My son needed the laptop while I was at work and didn’t know about the encryption code and I don’t know what happened but when I got home to work on my computer I put in my encryption code and the Manjaro logo came on with the 3 dots flashing but it suddenly stops before it goes into the desktop login screen and just freezes for hours.
Is there anything I can do to save my laptop please help
Thanks in advance