TPM not working

hi there,

So i have been using a dell xps 15 for the past 5 months or so, and i love the device. but for some

reason ever since today the TPM stopped working? yesterday i was still able to use my fingerprint or pincode to log in. i tried checking my bios where it sometimes shows the settings for TPM and sometimes doesnt, when it does show it says its enabled. i've tried updating bios software, going back to a earlier version of Windows and installing new drivers but all have sadly failed. when opening tpm.msc it says:
"Compatible TPM cannot be found. Compatible Trusted Platform Module (TPM) cannot be found on this computer. Verify that this computer has a 1.2 TPM or later and it is turned on in the BIOS". does somebody know a solution?