Librelec Boot Error

For some reason my Librelec has stopped booting up - I can the following error. Does this mean the SD card is corrupt and I need a fresh install or can this be salvaged?

Quote from Da Flex

Raspberry Pi? Reinstall LE on another microSD, and use Etcher to write the image.

I'm using pi4. I was hoping to avoid a fresh install. Do you know what the error message means?