compute instance stops several times each day

Summary:

Every couple of hours my compute instance will stop. It is not possible to connect via winscp or putty at these times

My applications stop working

the outage lasts roughly 20 minutes.

this only started happening about a month or so ago

Content (please ensure you mask any confidential information):

Availability domain: AD-2

Fault domain: FD-2

Region: uk-london-1

Image details

Operating system: Oracle Linux

Version: 8

Image: Oracle-Linux-8.4-2021.06.20-0

Shape configuration

Shape: VM.Standard.E2.1.Micro 

OCPU count: 1

Network bandwidth (Gbps): 0.48

Memory (GB): 1

Local disk: Block storage only

Version (include the version you are using, if applicable):

At the points where it goes offline I have no metrics or ability to check anything so i don't know how to progress diagnostics