Are calls and texts working ok?
Are you getting any connection to a local network at all?
You seem to be using an iPhone?
If so then could this be an issue?
https://community.48.ie/t5/Most-Popular-Questions/iPhone-abroad-issue/td-p/36862If the APN field of the APN settings is not 48months.liffeytelecom.com can you edit it and change it to that and see if that makes any difference?
If none of that helps then you'll probably have to contact 48 support.
See the link in my signature below or email them at support@48months.zendesk
Hope this helps.