System freezing on Lenovo yoga 2 11 - mint 19.1 Tessa

Hi, I'm new to linux so bear with me. I'm running Mint 19.1 Tessa on my Lenovo Yoga 2 - 11 and I'm having inconsistent stability issues. Sometimes I will be using it for hours with no problem and sometimes just a few minutes and the system completely freezes. I have no option but a hard reset.

Not sure if I can post photos on this site but here's a screenshot of my error log after hard reset.

https://imgur.com/kmCDny9

Any insights would be much appreciated.

Thanks