Meriva immobiliser fault

[Dawn C]

I recently bought a Meriva (2013) and it had an issue with the immobiliser yesterday. I had driven a short distance and it wouldn’t restart. 
Jump start etc not effective. 
Eventually discovered that disconnecting the battery reset the immobiliser and the car started immediately. I have since googled and apparently this is a known fault!  
Has anyone come across this and if so what do I do to prevent it recurring? The car battery is low quality and may need replaced. Is that likely to help? 
I have replaced the battery in the fob (although the previous one was still working ) 

thanks