2015 308 Multiple Fault Codes.... Any Ideas on cause or where to start?

[Tracksloth53]

We are having some difficulties with our 2015 1.2 Puretech GT Line. Initially we had the engine management light come on along with an orange engine fault message on the centre instrument binnacle. I borrowed a code reader and it gave a fault code of P0344 which we reset the code to see if it came back.

The EML was then triggered again with the same centre binnacle messaging. Using my own code reader it returned the code PO369, Camshaft position sensor B Circuit Intermittent bank. Again we rest the EML and on route to get it checked by a garage we then had a red warning engine fault: stop the vehicle.

We have had a diagnostics completed and there are pages of error codes showing, the garage thinks it could be electrical and have advised going elsewhere, more suited to autoelectrics. Other than the main dealer we do not have a Peugeot of French car specialist local to us.

If we drive the car now, after around 2.5 miles the same red warning comes up. If you turn the car off and back on it goes away until you complete approximately the same distane again. Has anyone had something like this before, what is it likely to be, feels like this could be a needle in a haystack fault finding at the minute. I've added the diagnostic print out that we have.

Thanks in advance for your help