Emergency mode even after timeshift restoration

[jkluska]

Hello,

I have Linux Mint 19 Cinnamon.
For two days it is stuck in the Emergency mode. I am quite new on Linux but I tried to look for solutions:
I am able to boot from USB. I, therefore, tried to restore Linux with timeshift and it failed (I tried with four different dates).
I also tried boot-repair but it did not work (http://paste.ubuntu.com/p/GjFtTPq7dd).

The errors on journalctl -xb are the following:

Code: Select all

tpm tpm0: A TPM error (378) occured get tpm pcr allocation
Problem loading UEFI:db X.509 certificate (-65)
Problem loading UEFI:db X.509 certificate (-65) 
dell_smbios: Unable to run on non-Dell system
PKCS#7 signature not signed with a trusted key
PKCS#7 signature not signed with a trusted key 
PKCS#7 signature not signed with a trusted key 
PKCS#7 signature not signed with a trusted key 
PKCS#7 signature not signed with a trusted key 
PKCS#7 signature not signed with a trusted key 
fcsk failed with exit status 4.
Failed to start File System Check on /dev/disk/by-uuid/2b713188-784f-4f13-960b-2c5c2715ef10
sd 5:0:0:0 [sdb] No caching mode page found
sd 5:0:0:0 [sdb] Assuming drive cache: write through

Any ideas of what it is and how I can repair it?

Thank you!

[AscLinux]

Running fsck on your root filesystem would be a start.