I’ve tried to goto advanced and remove / change the swap file line and unregister - register the VM but didn’t work....tried manually creating the the path to the data store under advanced and didn’t work.
It depends on how the swap file location has been configured.
In case it's a cluster configuration (ESXi managed by vCenter Server) you should be able to reconfigure it in the cluster settings. In case the relocation has been configured on a per VM basis, you will have to remove the related settings from each of the VM's configuration (.vmx) files.
In this case, please download the VM's configuration (.vmx) files, and attach them to a reply post.
Please verify that the files do not contain non-public content, e.g. private annotations etc.